Transfer control method, information transmission method, transfer device and network device

Abstract

In accordance with an embodiment of the present invention, there is provided a forwarding control method, an information transmission method, a forwarder, and a network device, wherein the forwarder includes a mobile terminal that performs beam failure detection, and a forwarding unit that turns off / does not forward in the event of a beam failure.

Description

[Technical Field]

[0001] The present invention relates to the field of communications. [Background technology]

[0002] Compared to traditional 3G and 4G systems, 5G systems can provide larger bandwidth and higher data rates, and can support more types of devices and vertical services.

[0003] Therefore, in addition to the traditional telecommunications frequency spectrum, 5G systems will also be deployed in new frequency spectrum, and the frequencies of the new frequency spectrum are significantly higher than those of the traditional telecommunications frequency spectrum used by 3G and 4G systems. For example, 5G systems can be deployed in the millimeter wave band (28GHz, 38GHz, 60GHz, etc.).

[0004] According to the law of wireless signal propagation, the higher the frequency of the carrier it is located on, the more severe the fading the signal experiences during propagation. Therefore, in practical deployment, 5G systems, especially those deployed in millimeter wave bands, require ways to enhance coverage compared to traditional 3G and 4G systems. Therefore, how to better enhance the cell coverage of 5G systems remains a problem to be solved.

[0005] To better solve the coverage problem of cellular mobile communication systems in actual deployments, RF relays / repeaters are commonly used to amplify and forward signals between terminal devices and network devices (also known as amplifier-and-forward). RF relays are widely used in the actual deployment of 3G and 4G systems. Generally speaking, conventional RF relays are devices that amplify and forward round-trip signals between devices in the RF domain. That is, conventional RF relays are non-regenerative relay nodes that only directly amplify and forward all received signals.

[0006] However, conventional RF transmitters cannot exchange information with other devices (e.g., network devices, terminal devices, etc.). Specifically, in reception, conventional RF transmitters do not support measurement, demodulation, or decoding of the transmitted signal, and do not receive signals other than the transmitted signal. In addition, in transmission, conventional RF transmitters only amplify and transmit signals, but do not support signal generation or transmission of signals generated by themselves. Therefore, the transmission behavior of conventional RF transmitters is not subject to network (e.g., network devices, etc.) control.

[0007] It should be noted that the introduction of the above background art is intended to clearly and completely explain the technical solutions of the present invention and to facilitate understanding by those skilled in the art, and these technical solutions described in the background art of the present invention should not be construed as being well known to those skilled in the art. Summary of the Invention [Problem to be solved by the invention]

[0008] To enhance NR coverage, 3GPP Rel-18 proposes a network-controlled repeater (NCR) scheme, which is used to forward signals between network equipment and terminal equipment. The NCR can support NCR forwarding operations by directly communicating with network equipment via a control link.

[0009] The open / close state of a traditional repeater is usually manually configured and cannot dynamically match the data transmission between the network device and the UE. Generally, data transmission between the network device and the UE is not always performed. Therefore, if the repeater remains on even when there is no data transmission between the network device and the UE, it can increase unnecessary power consumption and interfere with other devices, reducing network throughput. Therefore, compared to a traditional RF repeater, an NCR needs to have the function of controlling the on (open) / off (close) of the repeater unit. When the NCR is on, it can transmit signals. However, no method has yet been proposed for determining whether and how the NCR should transmit when it detects a beam failure.

[0010] In view of at least one of the above problems, embodiments of the present invention provide a forwarding control method, an information transmission method, a forwarder, and a network device. [Means for solving the problem]

[0011] According to one aspect of an embodiment of the present invention, there is provided a forwarder, comprising: a mobile terminal that performs beam failure detection; and Includes a transfer unit that turns off / does not transfer in case of beam failure.

[0012] According to another aspect of an embodiment of the present invention, there is provided a network device, comprising: a sending unit for sending third instruction information; The transmitting unit does not transmit the third indication information before the forwarder has an (applicable) backhaul link beam or before a second period before the forwarder has an (applicable) backhaul link beam.

[0013] According to another aspect of an embodiment of the present invention, there is provided a communication system, which includes the forwarder according to the previous aspect and / or the network device according to the previous aspect. [Effects of the Invention]

[0014] The advantageous effects of the embodiment of the present invention are at least as follows: when a beam failure is detected, the NCR performs or does not perform forwarding, thereby making the time domain resource / beam corresponding to the on state of the forwarding unit match the time domain resource / beam of data transmission between the network equipment and the terminal equipment, thereby saving the power consumption of the forwarder, reducing interference, and improving network throughput.

[0015] Additionally, features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, may be combined with features in the other embodiments, or may be substituted for features in the other embodiments.

[0016] It should be noted that when used in this specification, terms such as "comprise / have" refer to the presence of a feature, element, step, or assembly, but do not exclude the presence or addition of one or more other features, elements, steps, or assemblies. [Brief explanation of the drawings]

[0017] Elements and features shown in one drawing or one embodiment of an embodiment of the invention may be combined with elements and features shown in one or more other drawings or embodiments, and in the drawings, like reference numerals are used to indicate corresponding parts in several drawings and to indicate corresponding parts used in several embodiments.

[0018] The included drawings are used to provide a further understanding of the embodiments of the present invention, and these drawings constitute a part of this specification, illustrate embodiments of the present invention, and together with the written description, serve to explain the principles of the present invention. Also, it is apparent that the drawings described below are only for illustrating some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without any creative effort. [Figure 1]1 is a diagram illustrating a communication system according to an embodiment of the present invention. [Figure 2] FIG. 10 is a diagram illustrating a transfer control method according to an embodiment of the present invention. [Figure 3] FIG. 10 is a diagram illustrating a transfer control method according to an embodiment of the present invention. [Figure 4] FIG. 10 is a diagram illustrating a transfer control method according to an embodiment of the present invention. [Figure 5] FIG. 10 is a diagram illustrating a transfer control method according to an embodiment of the present invention. [Figure 6] 1 is a diagram illustrating an electronic device according to an embodiment of the present invention. [Figure 7] FIG. 2 illustrates a forwarder in accordance with an embodiment of the present invention. [Figure 8] FIG. 1 is a diagram illustrating an information transmission method according to an embodiment of the present invention. [Figure 9] FIG. 1 illustrates a network device according to an embodiment of the present invention. [Figure 10A] FIG. 10 is a diagram illustrating a random access procedure in an embodiment of the present invention. [Figure 10B] FIG. 10 is a diagram illustrating a random access procedure in an embodiment of the present invention. [Figure 10C] FIG. 10 is a diagram illustrating a random access procedure in an embodiment of the present invention. [Figure 10D] FIG. 10 is a diagram illustrating a random access procedure in an embodiment of the present invention. [Figure 10E] FIG. 10 is a diagram illustrating a random access procedure in an embodiment of the present invention. [Figure 11] FIG. 2 is a diagram showing a first MAC CE in an embodiment of the present invention. [Figure 12] FIG. 10 is a diagram showing a second MAC CE in an embodiment of the present invention. [Figure 13] FIG. 10 is a diagram showing a third MAC CE in an embodiment of the present invention. [Figure 14] FIG. 10 is a diagram illustrating a transfer control method according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] The foregoing and other features of the present invention will become more apparent from a consideration of the accompanying drawings and the following description. While the specification and drawings disclose particular embodiments of the present invention, they illustrate only some of the embodiments which may employ the principles of the present invention, and it is to be understood that the present invention is not limited to the described embodiments, but rather includes all modifications, variations, and alternatives which fall within the scope of the appended claims.

[0020] In embodiments of the present invention, the term "communication network" or "wireless communication network" may refer to a network conforming to any communication standard, such as New Radio (NR), Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0021] Additionally, communications between devices in a communications system may be performed according to any level of communications protocol, including, but not limited to, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, 5G, New Radio (NR), and / or other conventional or future-developed communications protocols.

[0022] In the embodiments of the present invention, the term "network equipment" refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services to the terminal device. The network equipment may include, but is not limited to, a node and / or a donor in an IAB architecture, a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobile management entity (MME), a network gateway, a server, a radio network controller (RNC), a base station controller (BSC), etc.

[0023] A base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), a 5G base station (gNB), etc., and may further include a Remote Radio Head (RRH), a Remote Radio Unit (RRU), a relay, or a low-power node (e.g., femto, pico, etc.). The term "base station" may also include some or all of the functionality thereof, and each base station can provide communication coverage for a particular geographic area. The term "cell" may refer to a base station and / or the area it covers, depending on the context in which the term is used.

[0024] In embodiments of the present invention, the term "User Equipment" (UE) or "Terminal Equipment" (TE) refers to a device that accesses a communication network and receives services from the network, for example, via network equipment. User equipment may be fixed or mobile, and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, etc.

[0025] User equipment may include, but is not limited to, cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, mobile devices, machine-type communication devices, laptop computers, cordless phones, smartphones, smart watches, digital cameras, and the like.

[0026] Furthermore, for example, in the case of a scenario such as the Internet of Things (IoT), the user equipment may also be a monitoring or measuring device or apparatus, including, but not limited to, a Machine Type Communication (MTC) terminal, an in-vehicle communication terminal, a Device to Device (D2D) terminal, a Machine to Machine (M2M) terminal, etc.

[0027] Furthermore, the term "network side" or "network equipment side" refers to the network side, which may be a base station or may include one or more network equipment as described above. The term "user side" or "terminal side" or "terminal equipment side" refers to the user or terminal side, which may be a UE or may include one or more terminal equipment as described above. Unless otherwise specified, "equipment" herein may refer to network equipment or may also refer to terminal equipment.

[0028] In an embodiment of the present invention, conventional traffic (services) or future traffic may be carried between the network device and the terminal device, including, but not limited to, enhanced Mobile Broadband (eMBB), massive Machine Type Communication (mMTC), Ultra-Reliable and Low-Latency Communication (URLLC), etc.

[0029] FIG. 1 illustrates an NCR in an embodiment of the present invention. As shown in FIG. 1, the NCR 102 is disposed between a network device 101 and a terminal device 103. The NCR 102 may include two modules / components: a mobile terminal forwarder (NCR-MT) and a forwarder forwarding unit (NCR-Fwd). The NCR-Fwd may also be referred to as the routing unit (NCR-RU) of the NCR. The NCR-MT is used to communicate with the network device, and the NCR-Fwd is used to forward signals between the network device and the terminal device. The NCR-MT and NCR-Fwd are functional entities, and their functions may be realized by the same or different hardware modules.

[0030] As shown in FIG. 1 , the NCR in an embodiment of the present invention may have three links: a control link (C-link), a backhaul link (BH link) for forwarding, and an access link (AC link (also referred to as the NCR-UE link)). The C-link is used for communication between the NCR and the network equipment. The BH link is used by the forwarder to receive forwarding pending signals from the network equipment or to forward signals from the terminal equipment to the network equipment. The AC link is used by the forwarder to forward signals from the network equipment to the terminal equipment or to receive forwarding pending signals from the terminal equipment. Specifically, the NCR-MT communicates with the network equipment via the C-link, and the NCR-Fwd forwards signals via the BH link and the AC link.

[0031] In an embodiment of the present invention, a forwarder can communicate with a network device. The forwarder can receive a channel / signal transmitted by the network device and demodulate / decode the channel / signal to obtain information transmitted by the network device to the forwarder. This signal processing process is hereinafter referred to as "communication." The forwarder can also forward a channel / signal transmitted between a network device and a terminal device. The forwarder can amplify or process the channel / signal without demodulating / decoding it. This signal processing process is hereinafter referred to as "forwarding." Furthermore, "communication" and "forwarding" are collectively referred to as "transmission." Furthermore, "transmitting or receiving over an AC (or BH) link" may be equivalent to "transmitting over an AC (or BH) link," and "transmitting or receiving over a control link" may be equivalent to "communicating over a control link." The above terms are for convenience of explanation only and do not limit the present invention. In some cases, "forwarding unit" may be interchangeable with "forwarding act."

[0032] In embodiments of the present invention, a forwarder may also be referred to as a network controlled forwarder (NCR), repeater, RF forwarder, relay, RF repeater; or a repeater node, forwarder node, relay node; or an intelligent repeater, intelligent forwarder, intelligent relay, intelligent repeater node, intelligent forwarder node, intelligent relay node, etc., but the present invention is not limited thereto.

[0033] In an embodiment of the present invention, the network equipment may be an equipment of a serving cell of a terminal equipment, an equipment of a cell in which a forwarder is located, an equipment of a serving cell of a forwarder, or a parent node of a forwarder. The present invention does not limit the name of the forwarder, and all equipment that can realize the above-mentioned functions falls within the scope of the forwarder of the present invention.

[0034] In an embodiment of the present invention, the higher layer signaling may be, for example, Radio Resource Control (RRC) signaling, and the RRC signaling may include, for example, an RRC message, such as a Master Information Block (MIB), system information, or a dedicated RRC message, or may be an RRC information element (RRC IE) or an information field (or an information field) included in an RRC message or an RRC information element. The higher layer signaling may also be, for example, Medium Access Control (MAC) signaling, or may be referred to as a MAC control element (MAC CE). However, the present invention is not limited thereto.

[0035] In embodiments of the present invention, a plurality refers to at least two, or two or more than two.

[0036] In an embodiment of the present invention, "predefined" refers to being specified in an agreement (protocol) or determined by rules specified in the agreement, and does not require additional configuration. "Configuring / instructing" refers to being configured / instructed directly or indirectly by a network device through higher layer signaling and / or physical layer signaling. Physical layer signaling refers to, for example, but is not limited to, control information (DCI) carried by a physical control channel or control information carried by a sequence. Configuration / instruction may be performed by introducing higher layer parameters into the higher layer signaling, and the higher layer parameters refer to information fields and / or information elements (IEs) in the higher layer signaling.

[0037] Various implementations of the present invention will be described below in conjunction with the drawings. These implementations are merely examples and are not intended to limit the present invention.

[0038] <Example of the first aspect> In the embodiment of the present invention, a method for controlling forwarding is provided and explained from the perspective of the forwarder.

[0039] 2 is a diagram illustrating a transmission control method in an embodiment of the present invention. As shown in FIG. 2, the method includes: 201: The mobile terminal of the forwarder performs beam failure detection; and 202: In case of beam failure, the transfer unit of the transferor is turned off / does not transfer.

[0040] Note that, although the above-mentioned FIG. 2 is used to exemplify an embodiment of the present invention, the present invention is not limited thereto. For example, the execution order of each operation (step) can be appropriately adjusted, or some operations can be appropriately increased or decreased. Those skilled in the art can make appropriate modifications based on the above content without being limited to the description of the above-mentioned FIG. 2.

[0041] In some embodiments, the forwarder mobile terminal (hereinafter referred to as NCR-MT) and the forwarder forwarding unit (NCR-Fwd) are all functional entities in the forwarder, and the forwarder mobile terminal and the forwarder forwarding unit may both be referred to as the forwarder.

[0042] In some embodiments, the NCR-MT includes one serving cell (Pcell) or multiple serving cells, and the mobile terminal of the forwarder performs beam failure detection for a first cell, which is a primary cell Pcell, PScell, or Scell, and embodiments of the present invention are not limited thereto.

[0043] In some embodiments, the NCR-MT performs BFD for the first cell, and the network device configures a beam failure detection reference signal (SSB or CSI-RS) for the NCR. The network device determines that a beam failure has occurred (i.e., a beam failure has been detected, including BFI_COUNTER≧beamFailureInstanceMaxCount) when the number of beam failure instance indications from the physical layer reaches (or exceeds) a configured threshold (BFI_COUNTER≧beamFailureInstanceMaxCount) before a configured timer expires. Among these, SSB-based beam failure detection is based on the SSB associated with the initial DL BWP, and can be configured for DL ​​BWPs including the initial DL BWP and the SSB associated with the initial DL BWP. For other DL BWPs, beam failure detection is performed based only on the CSI-RS.

[0044] For example, (NCR / NCR-MT (MAC entity)) detects beam failure by counting beam failure instance indications from the lower layer (physical layer). Among them, BFI_COUNTER (first counter) is used to count beam failure instance indications, and its initial value is 0. For the primary cell, when the MAC entity receives a beam failure instance indication from the lower layer (physical layer), it starts the beamFailureDetectionTimer and increments the BFI_COUNTER by 1. When the value of BFI_COUNTER is equal to or greater than the set threshold beamFailureInstanceMaxCount, if the primary cell is an SCell, it triggers the NCT-MT to perform beam failure recovery for the primary cell; otherwise, it performs a random access procedure in the SpCell (including a Pcell and / or a PScell, which is the primary cell). Set BFI_COUNTER to 0 if the beamFailureDetectionTimer expires or if the higher layer for the first cell resets the beamFailureDetectionTimer, threshold or reference signal for BFD.

[0045] In some embodiments, in the event of a beam failure (e.g., this may include when a beam failure is detected (at the first cell) and / or after a beam failure is detected, and redundant description will be omitted below), the method may further include the following: the forwarder (NCR / NCR-MT) performs beam failure recovery (BFR), for example, performing BFR for the first cell.

[0046] For example, the beam failure recovery includes: performing random access, for example, initiating random access in a first cell, the random access being for beam failure recovery; or transmitting a MAC CE for SR and / or BFR (to a second cell (the second cell is the serving cell)). For example, when / after a beam failure is detected, the BFR procedure is used to instruct (to the network equipment) a new SSB or CSI-RS, and the NCR performs random access based on the beam failure recovery configuration information configured by the network equipment, which includes non-contention random access (CFRA RACH) or contention random access (CBRA RACH). For example, it includes two interactions between the network equipment and the NCR-MT (4-step RA), where in the first interaction, the NCR-MT initiates a random access request (MSG1, including transmission of a random access preamble or transmission of a physical random access channel PRACH) and receives a random access response fed back from the network equipment (MSG2), and in the second interaction, the NCR-MT transmits information including an identification (ID) to the network equipment (MSG3) and receives a feedback MSG4 from the network equipment; or the random access is a two-step random access (2-step RA). RA), i.e., the original MSG1 and MSG3 are merged as a new MSGA, and MSG2 and MSG4 are merged as a new MSGB.

[0047] For a Pcell / PScell ​​(SpCell), when a random access procedure is initiated on the first cell (Pcell / PScell ​​(SpCell)) and a beam failure is detected on the Pcell / PScell ​​(SpCell), the NCR triggers beam failure recovery by initiating a random access procedure on the Pcell / PScell ​​(SpCell); selects an appropriate beam to perform beam failure recovery (if the network equipment already provides dedicated random access resources for some beams, the NCR will give priority to these beams); and if the random access procedure relates to contention-based random access, the BFR MAC CE includes an indication of beam failure on the Pcell / PScell ​​(SpCell).

[0048] For an Scell ​​(non-PScell), it detects a beam failure in the primary cell (SCell) and triggers beam failure recovery by starting transmission of a BFR MAC CE for the SCell; it also selects an appropriate beam for the SCell (if available) and indicates it in the BFR MAC CE along with beam failure information. It considers beam failure recovery for the SCell to be complete when it receives a PDCCH and the PDCCH indicates an uplink grant (UL grant) for a new transmission of a HARQ process for transmission of a BFR MAC CE.

[0049] In some embodiments, with respect to a random access procedure for / by BFR initialization, according to configuration, the random access procedure may include a 4-step RA (4-step RA type) and / or a 2-step RA (2-step RA type) for contention random access, and / or a 4-step RA (4-step RA type) and / or a 2-step RA (2-step RA type) for non-contention random access. Figure 10A illustrates a CBRA of the 4-step RA type in an embodiment of the present invention. As shown in Figure 10A, in a first step (MSG1), the NCR sends a random access preamble to the network device, in a second step (MSG2), it receives an RAR returned from the network device, in a third step (MSG3), it subsequently sends a scheduling transmission to the network device, and in a fourth step (MSG4), it receives a contention resolution message sent by the network device. Figure 10B illustrates a 2-step RA type CBRA in an embodiment of the present invention. As shown in FIG. 10B, the NCR transmits a random access preamble and a PUSCH payload (MSGA) to the network device and receives a contention resolution message (MSGB) transmitted by the network device. FIG. 10C is a diagram illustrating a 4-step RA type CFRA in an embodiment of the present invention. As shown in FIG. 10C, the network device allocates a random access preamble for the NCR (MSG0), the NCR transmits a random access preamble to the network device (MSG1), and then receives an RAR returned from the network device (MSG2). FIG. 10D is a diagram illustrating a 2-step RA type CFRA in an embodiment of the present invention. As shown in FIG. 10D, the network device allocates a random access preamble and a PUSCH to the NCR (MSG0), the NCR transmits a random access preamble and a PUSCH payload to the network device (MSGA), and then receives an RAR returned from the network device (MSG2).

[0050] In some embodiments, if the 2-step RA type random access procedure is not yet completed after some MSGAs have been transmitted, the NCR may be configured to switch to the 4-step RA type CBRA, and Figure 10E is a diagram showing the random access procedure in an embodiment of the present invention. As shown in Figure 10E, the NCR transmits a random access preamble and a PUSCH payload to the network device (MSGA), and when a FALLBACK indication is received, it transmits a scheduling transmission to the network device and receives a contention resolution message transmitted by the network device.

[0051] For example, successful beam failure recovery includes the following: for CFRA, the NCR-MT has detected a DCI (format) CRC-scrambled by the C-RNTI or MCS-C-RNTI or RNTI for NCR in the search space (SS (first SS, as described below)) provided by recoverySearchSpaceId (or has received one PDCCH transmission in the SS, where the PDCCH transmission is addressed to the C-RNTI or MCS-C-RNTI or RNTI for NCR), and / or has received a first PDCCH (where the first PDCCH is addressed to the C-RNTI or MCS-C-RNTI or RNTI for NCR, e.g., for CFRA, the first PDCCH is received in the RAR after (NCR / NCR-MT) has transmitted MsgA or PRACH). window), and / or the (non-contention) random access procedure (in, for, or for the beam failure recovery or for the initialization of the beam failure recovery) has (successfully) completed; and (for CBRA) the NCR-MT has detected a DCI (format) CRC-scrambled with C-RNTI or MCS-C-RNTI or RNTI for NCR in the search space provided by recoverySearchSpaceId (or has received one PDCCH transmission at the SS, the PDCCH transmission addressed to C-RNTI or MCS-C-RNTI or RNTI for NCR), and / or the first PDCCH has been received (the first PDCCH addressed to C-RNTI or MCS-C-RNTI or RNTI for NCR, e.g., in a 2-step In CBRA, the first PDCCH (after NCR / NCR-MT) transmits MsgA, and in 4-step CBRA, the first PDCCH (after NCR / NCR-MT) transmits Msg.3) and / or the contention resolution is successful; and / or the (contention-based) random access procedure (in, for, or for the initialization of the beam failure recovery) is successfully completed; and / or the beam failure recovery is successfully completed.

[0052] Each successful beam failure recovery is further described below.

[0053] In some embodiments, for a PCell or a PSCell, a CORESET through a link to a search space set provided by recoverySearchSpaceId may be used to monitor a PDCCH in the CORESET (e.g., but not limited to, the first PDCCH).

[0054] In some embodiments, in the case of CBRA / CFRA 4-step type, the PDCCH is monitored within the ra-ResponseWindow, and when the MAC entity transmits a non-contention random access preamble for beam failure recovery indication, the ra-ResponseWindow in the beam failure recovery configuration BeamFailureRecoveryConfig is turned on (started) from the first PDCCH occasion at / after the random access preamble transmission, and when the ra-ResponseWindow is active, the PDCCH transmission is monitored in the search space indicated by the recoverySearchSpaceId of the SpCell (identified by the C-RNTI or MCS-C-RNTI or RNTI for NCR).

[0055] In some embodiments, for the CFRA 4-step type, the random access procedure is considered successful or the beam failure recovery is considered successful when the corresponding PDCCH (first PDCCH) is received (in the search space provided by recoverySearchSpaceId) (in the ra-ResponseWindow described above), for example, when the serving cell transmitting the random access preamble receives notification from a lower layer that it is receiving the first PDCCH, and the first PDCCH is addressed to the C-RNTI and the MAC entity transmits a non-contention random access preamble for a beam failure recovery request.

[0056] In some embodiments, for a 4-step type of CBRA, if a valid downlink allocation for RA-RNTI is received on the PDCCH (PDCCH for scheduling the PDSCH carrying the RAR) and the received TB is successfully decoded, if a random access procedure is initiated for beam failure recovery of the SpCell and the SpCell BFR CBRA is set to a value of true, the following is instructed to the multiplexing and assembly entity (sent in MSG3): that the subsequent uplink transmission will include a BFR MAC CE or a truncated BFR MAC CE. The MAC PDU to be transmitted is obtained from the multiplexing and assembly entity and stored in the MSG3 buffer.

[0057] In some embodiments, for a 4-step type of CBRA, when MSG3 is transmitted, the MAC entity shall start the ra-ContentionResolutionTimer and restart the ra-ContentionResolutionTimer at each HARQ retransmission within the first symbol after the completion of MSG3 transmission, and shall monitor the PDCCH (in the search space provided by recoverySearchSpaceId) regardless of any measurement intervals that may occur while the ra-ContentionResolutionTimer is running.

[0058] In some embodiments, for the 4-step type of CBRA, if a notification is received from a lower layer that the first PDCCH on the SpCell has been received (or the first PDCCH has been received (in the search space provided by recoverySearchSpaceId) while the ra-ContentionResolutionTimer is running), and the previously transmitted MSG3 includes a MAC CE for the C-RNTI, and the first PDCCH is addressed to the RNTI for the C-RNTI or MCS-C-RNTI or NCR, and the random access procedure was initiated for SpCell beam failure recovery, the random access procedure (contention resolution) is considered to be successful or the beam failure recovery is successful, the ra-ContentionResolutionTimer is stopped, and the C-RNTI is temporarily discarded.

[0059] In some embodiments, for the 2-step type of CFRA, if the PDCCH is monitored in the msgB-ResponseWindow, and a notification is received from a lower layer that the first PDCCH on the SpCell has been received (or the first PDCCH has been received (in the search space provided by recoverySearchSpaceId) in the msgB-ResponseWindow), and the previously transmitted MSGA includes the MAC CE of the C-RNTI, then the random access procedure is considered to have been successful or the beam failure recovery is considered to have been successful, or the reception of the random access response is considered to have been successful, and the msgB-ResponseWindow is stopped.

[0060] In some embodiments, in the event of a beam failure (which may include, for example, upon detecting a beam failure (at the first cell) and / or after detecting a beam failure), the forwarding unit of the forwarder is (expected to) turn off / do not forward (or is not allowed to turn on / do not forward).

[0061] For example, in the case of a beam failure of the first cell, no transfer is performed until BFR is successful, and after BFR is successful (until a new setting is received / the new setting is applied), transfer is performed using the first beam, and after the new setting is received / the new setting is applied, transfer is performed using the second beam; or, for example, after a beam failure of the first cell (regardless of whether BFR is successful or after BFR is successful), no transfer is performed until a new setting is received and / or the new setting is applied (i.e., even if BFR is successful after a beam failure of the first cell (or after BFR is successful), no transfer is performed until a new setting is received and / or the new setting is applied). After the new setting is received and / or the new setting is applied, transfer is performed using the first beam, the second beam, or the third beam. Each of these is described below.

[0062] (1) The NCR-Fwd is (expected to be) turned off / does not transmit (or is not allowed to be turned on / transmit) until the BFR is successful (or before the BFR is successful). In other words, in beam failure recovery (random access procedure), the NCR-Fwd does not transmit until the BFR is successful.

[0063] In some embodiments, after the BFR is successful, the NCR-Fwd employs the first beam to perform forwarding.

[0064] In some embodiments, after a first period after a first PDCCH (received), NCR-Fwd employs a first beam for forwarding. For example, after the first period after a first PDCCH (received) refers to 28 symbols after the last symbol of the first PDCCH (received), where the first PDCCH (received) is in a search space set (set) for detecting a DCI (format) CRC-scrambled by a C-RNTI or MCS-C-RNTI (for example, but not limited to, the first PDCCH carries the DCI (format)) provided by recoverySearchSpaceId. The first PDCCH is used to determine the success of beam failure recovery and / or the completion of a random access procedure.

[0065] The first beam will be described below. For example, the first beam is a backhaul link beam, which refers to the beam used for the backhaul link when the forwarding unit of the forwarder performs forwarding, or the beam used for the network equipment side of the forwarder, that is, the forwarding unit of the forwarder uses the first beam to forward signals to the network equipment or forward signals from the network equipment side (that is, used for the backhaul link or forwarding); and / or the first beam is a control link beam (that is, used for the control link or for communication / information interaction between the NCR / NCR-MT and the network equipment).

[0066] In some embodiments, the first beam is the same as the beam (including a beam determined based on an SSB associated with the RO (RACH occasion) of the most recent PRACH transmission) used in the (most recent (closest)) random access attempt / process (or successful random access attempt / process) (in the beam failure recovery, for the beam failure recovery, or for the beam failure recovery initialization), and includes a downlink beam (or a receive beam used to receive downlink signals and / or channels from the network equipment (awaiting forwarding to NCR / NCR-MT and / or (NCR / NCR-Fwd))) and / or an uplink beam (or a transmit beam used to transmit uplink signals and / or channels from the network equipment (for forwarding to the network equipment (by NCR / NCR-MT and / or NCR / NCR-Fwd))).

[0067] For example, the first beam includes the following: index q new and / or a (downlink) beam determined based on the SSB associated with the RO (RACH occasion) of the most recent PRACH transmission; and / or a downlink beam for receiving the first PDCCH; and / or an uplink beam for transmitting the most recent PRACH (transmission).

[0068] In some embodiments, the first beam is predefined (eg, specified in a protocol or determined based on predefined rules) or directed.

[0069] In some embodiments, the first beam is used for forwarding when there is or is not reception or transmission on the NCR-MT / control link.

[0070] In the above, after the BFR is successful or after the first period after the first PDCCH, the NCR-Fwd adopts the first beam and performs transmission until it receives the first instruction information (or control link beam instruction / setting) and / or the second instruction information (or backhaul link beam setting / instruction) and / or the third instruction information (or access link beam setting / instruction) and / or applies the first instruction information and / or the second instruction information and / or the third instruction information (or applies the beam indicated by the above-mentioned instruction information), or after the BFR is successful or after the first period after the first PDCCH, the NCR-Fwd adopts the first beam and performs transmission before it receives the first instruction information (or control link beam instruction / setting) and / or the second instruction information (or backhaul link beam setting / instruction) and / or the third instruction information (or access link beam setting / instruction) and / or applies the first instruction information and / or the second instruction information and / or the third instruction information (or applies the beam indicated by the above-mentioned instruction information).

[0071] In some embodiments, after receiving first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / setting) and / or third instruction information (or access link beam setting / setting), and / or applying the first instruction information and / or second instruction information and / or third instruction information (or applying the beam instructed by the above-mentioned instruction information), NCR-Fwd adopts the second beam and performs forwarding.

[0072] In some embodiments, after receiving the first instruction information (or the control link beam instruction / setting) and / or the second instruction information (or the backhaul link beam setting / setting) and / or the third instruction information (or the access link beam setting / setting), and / or applying the first instruction information and / or the second instruction information and / or the third instruction information (or applying the beam instructed by the above-mentioned instruction information), the NCR-Fwd adopts the first beam or the third beam to perform forwarding. For example, if there is no instruction in the first instruction information and the second instruction information, but the third instruction information indicates that the NCR can perform forwarding, the NCR performs forwarding using the predefined first beam or the third beam described below.

[0073] In some embodiments, the above-mentioned instruction information and second and third beams are described below.

[0074] (2) The NCR-Fwd is (expected to) be turned off / not perform forwarding (or is not allowed to be turned on / perform forwarding) before the beam failure recovery is successful (regardless of whether BFR was successful) until it receives first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / instruction) and / or third instruction information (or access link beam setting / instruction) and / or applies the first instruction information and / or second instruction information and / or third instruction information (or applies the beam instructed by the above-mentioned instruction information).

[0075] Alternatively, before receiving the first instruction information (or control link beam instruction / setting) and / or the second instruction information (or backhaul link beam setting / setting) and / or the third instruction information (or access link beam setting / setting), and / or applying the first instruction information and / or the second instruction information and / or the third instruction information (or applying the beam instructed by the above-mentioned instruction information), the NCR-Fwd is (expected to) be turned off / not perform forwarding (or is not allowed to be turned on / perform forwarding) before the beam failure recovery is successful.

[0076] In some embodiments, after receiving first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / setting) and / or third instruction information (or access link beam setting / setting), and / or applying the first instruction information and / or second instruction information and / or third instruction information (or applying the beam instructed by the above-mentioned instruction information), NCR-Fwd adopts the second beam and performs forwarding.

[0077] In some embodiments, after receiving the first instruction information (or the control link beam instruction / setting) and / or the second instruction information (or the backhaul link beam setting / setting) and / or the third instruction information (or the access link beam setting / setting), and / or applying the first instruction information and / or the second instruction information and / or the third instruction information (or applying the beam instructed by the above-mentioned instruction information), the NCR-Fwd adopts the first beam or the third beam to perform forwarding. For example, if there is no instruction in the first instruction information and the second instruction information, but the third instruction information indicates that the NCR can perform forwarding, the NCR performs forwarding using the predefined first beam or the third beam described below.

[0078] The instruction information in (1) and (2) above will be explained below.

[0079] In some embodiments, the first instruction information is used to indicate / configure a control link beam.

[0080] For example, the first indication information is used to configure and / or activate TCI state / SRI (SpatialRelationInfo) (for PDSCH and / or PDCCH and / or PUCCH and / or SRS), which includes RRC signaling, and / or MAC CE, and / or DCI. For example, the first indication information includes a MAC CE activation command for a TCI state (or an instruction to activate a TCI state), or an information field of tci-StatesToAddModList(-r17 / r18) and tci-StatesToReleaseList(-r17 / r18) in PDSCH-Config, for example, the MAC CE may be a Unified TCI States Activation / Deactivation MAC CE, a TCI States Activation / Deactivation user-dedicated PDSCH MAC CE, or a TCI State Indication user-dedicated PDCCH MAC CE; and / or the first indication information includes a (MAC CE) activation command for PUCCH-SpatialRelationInfo(-r17 / r18) and / or PUCCH-SpatialRelationInfo(-r17 / r18) for PUCCH resources, for example, the activation command may be a PUCCH spatial relation Activation / Deactivation MAC CE (PUCCH spatial relation Activation / Deactivation MAC CE). CE), or Enhanced PUCCH Spatial Relation Activation / Deactivation MAC CE, or Multi-TRP PUCCH overlapping PUCCH spatial relation activation / deactivation MAC CE;and / or the first indication information includes tci-StatesToAddModList(-r17 / r18) and / or tci-StatesToReleaseList(-r17 / r18) (in / PDSCH-Config for PDSCH configuration), and / or dl-OrJointTCI-StateList(-r17 / r18) and / or dl-OrJointTCI-StateToAddModList(-r17 / r18) and / or dl-OrJointTCI-StateToReleaseList(-r17 / r18) (in / PDSCH-Config for PDSCH configuration), and / or ul-TCI-ToAddModList, and / or a second DCI (for indicating (or indicating) a unified TCI) (e.g., DCI format 1_1 / 1_2, etc.);

[0081] In some embodiments, the second instruction information is used to instruct a backhaul link beam.

[0082] For example, the second indication information is MAC signaling. The second indication information is used to indicate the following: indicating a TCI state for a backhaul link in a first TCI state set, indicating a TCI state for a backhaul link in a second TCI state set, or indicating an SRI for a backhaul link in a first SRI set. For example, when a Rel-15 / 16 beam indication framework is applied to the control link, the second indication information indicates a TCI state for a backhaul link in a first TCI state set for a downlink beam, and indicates an SRI for a backhaul link in a first SRI set for an uplink beam. Also, when a Rel-17 beam indication framework is applied to the control link, the second indication information indicates a TCI state for a backhaul link in a second TCI state set. Alternatively, the indication information indicates a Unified TCI state. For example, for NCR, the type of unified TCI State may always indicate uplink and downlink joint, or may indicate uplink and downlink joint or separate, independently indicating that the dl-OrJointTCI-StateList of the downlink TCI state and the ul-TCI-ToAddModList of the uplink TCI state are set in the serving cell, or jointly indicating that the dl-OrJointTCI-StateList of the uplink and downlink joint TCI state is set in the serving cell.

[0083] In some embodiments, the second indication information includes one or more MAC CEs.

[0084] For example, the second instruction information includes a first MAC CE for indicating a downlink beam of a backhaul link, and when a Rel-15 / 16 beam instruction framework is applied in a control link, for the downlink beam, the first MAC CE indicates a TCI state for the backhaul link in a first TCI state set, which includes at least a first information field for indicating a TCI state (e.g., a TCI state ID), and may or may not include a second information field for indicating a serving cell (e.g., a serving cell ID) and / or a third information field for indicating a downlink BWP (e.g., a BWP ID).

[0085] For example, the second indication information includes a second MAC CE for indicating an uplink beam of a backhaul link, and when a Rel-15 / 16 beam indication framework is applied in a control link, for the uplink beam, the second MAC CE indicates an SRI for the backhaul link in a first SRI set, and includes a first information field for indicating an SRI (e.g., SRI ID), and may or may not include a second information field for indicating a serving cell (e.g., serving cell ID) and / or a third information field for indicating an UL BWP (e.g., BWP ID). For example, the first information field indicates a pucch-SpatialRelationInfoId to indicate the SRI for the backhaul link.

[0086] For example, the second indication information includes a third MAC CE for indicating an uplink beam and / or a downlink beam of a backhaul link, and when the Rel-17 beam indication framework is applied in the control link, the third MAC CE indicates a TCI state for the backhaul link in a second TCI state set, includes a first information field for indicating a TCI state (e.g., TCI state ID), and may or may not include a second information field for indicating a serving cell (e.g., serving cell ID) and / or a third information field for indicating a BWP (e.g., BWP ID). The first information field indicates a Unified TCI state, for example, indicating the TCI state for the backhaul link in dl-OrJointTCI-StateList.

[0087] It should be noted that the above-mentioned first MAC CE, second MAC CE and third MAC CE may be the same MAC CE or different MAC CEs, and the embodiment of the present invention is not limited thereto.

[0088] For example, for a first MAC CE (NCR backhaul link downlink beam activation / deactivation MAC CE), the first MAC CE is identified by a MAC subheader with eLCID (see Table 6.2.1-1b) and has a fixed size of 8 bits. Figure 11 shows the first MAC CE in an embodiment of the present invention. As shown in Figure 11, the TCI State ID field (7 bits) indicates the TCI-State ID of the TCI state set by tci-StatesToAddModList and tci-StatesToReleaseList in the PDSCH-Config of the active BWP, and the A / D field (1 bit) indicates whether the indicated TCI state is to be activated or deactivated. If this field is set to 1, activation is indicated, and if not, deactivation is indicated.

[0089] For example, for a second MAC CE (NCR backhaul link uplink beam activation / deactivation MAC CE), the second MAC CE is identified by a MAC subheader with eLCID (see Table 6.2.1-1b) and has a fixed size of 8 bits. FIG. 12 shows a diagram of the second MAC CE in an embodiment of the present invention. As shown in FIG. 12, the S i information field is for the activation BWP setting PUCCH spatial relationship information SpatialRelationInfoId (see TS 38.331), where S i represents the active state of PUCCH SpatialRelationInfo, where PUCCH SpatialRelationInfoId is equal to i+1. When the S i field is set to 1, it indicates that the PUCCH spatial relationship information (PUCCH SpatialRelationInfoId is equal to i+1) should be activated. When the S i field is set to 0, it indicates that the PUCCH spatial relationship information (PUCCH SpatialRelationInfoId is equal to i+1) should be deactivated. Only a single PUCCH spatial relationship information configured in the active BWP can be activated at one time.

[0090] For example, for the third MAC CE (NCR backhaul link unified beam activation / deactivation MAC CE), the third MAC CE is identified by a MAC subheader with eLCID (see Table 6.2.1-1b), which has a variable length. Figure 13 is a diagram showing the third MAC CE in an embodiment of the present invention. As shown in Figure 13, - P: This field indicates whether the TCI codepoint has two TCI states or a single TCI state. If the P field is set to 1, it indicates that the TCI codepoint includes a DL TCI state and a UL TCI state. If the P field is set to 0, it indicates that the TCI codepoint has only a DL / joint TCI state or a UL TCI state; - D / U: This field indicates that the TCI status ID in the same octet is used for DL / joint TCI status or UL TCI status. If this field is set to 1, the TCI status ID in the same (corresponding) octet is used for DL / joint TCI status. If this field is set to 0, the TCI status ID in the same (corresponding) octet is used for UL TCI status; -TCI State ID: This field indicates the TCI indicated by the TCI State ID configured in the active DL / UL BWP specified in TS 38.331. If D / U is set to 1, a 7-bit long TCI State ID is used, i.e., the TCI StateId configured in dl-OrJoint-TCStateList-r17 of the active DL BWP specified in TS 38.331 is used. If D / U is set to 0, the most significant bit of the TCI State ID is considered as a reserved bit, and the remaining 6 bits indicate the UL TCIState ID configured in the active UL BWP specified in TS 38.331; A / D: This field indicates whether the indicated TCI state is activated or deactivated. If the field is set to 1, it indicates activation, otherwise it indicates deactivation; and -R: Reserved bit, set to 0.

[0091] In some embodiments, the third indication information is used to indicate an access link beam, and the third indication information includes: a periodic / semi-static (or provided by RRC signaling) access link beam indication (hereinafter referred to as first beam indication information), an activation command (MAC CE / DCI) (for activating the access link beam indication), information for setting / indicating the first DCI (monitored by NCR), and the first DCI (for indicating the access link beam).

[0092] For example, the first beam indication information may be a newly introduced information field (higher layer parameter) in RRC signaling, which includes one or more periodic beam indications (first beam indications) for the access link. Each first beam indication includes a transmission resource list, each of which includes a fourth information field for indicating an access link beam and a fifth information field for indicating a time domain resource, the fifth information field including time length information and / or offset information of the time domain resource within one period, and the first beam indication may further include period information (for all time domain resources indicated by the first beam indication information) and / or priority information, and the first beam indication information may further include a sixth information field for indicating a first subcarrier spacing, the indicated first subcarrier spacing being for all time domain resources indicated by the first beam indication information, for example, all time domain resources indicated by the first beam indication information are related to the first subcarrier spacing, which includes: time length information and / or offset information of each time domain resource are related to the first subcarrier spacing, and the time unit of the time length information and / or offset information may be milliseconds, slots, or symbols, and its length is related to the first subcarrier spacing, although this is not limited in the embodiments of the present invention.

[0093] In some embodiments, the network device can send one or more pieces of first beam direction information to the NCR, and each piece of first beam direction information includes one or more of the above-mentioned fourth information field, fifth information field, sixth information field, periodic information, and priority information. For example, by using ToAddModList or other lists for configuration, one or more lists can be configured, and one list can include one of the above-mentioned first beam direction information, thereby supporting one or more first beam direction information.

[0094] In some embodiments, the RRC signaling includes an RRC Reconfiguration message, and / or an RRC Release message, and / or a first RRC message, where the first RRC message is an NCR-only RRC message.

[0095] In some embodiments, the first RRC message may include, in addition to the above-mentioned first beam indication information, further information, such as related settings for the fourth and fifth information fields in the first DCI described below (e.g., the time domain resource list settings described below), but embodiments of the present invention are not limited thereto.

[0096] In some embodiments, after receiving the first beam instruction information, the NCR needs to receive another instruction and then, based on the first beam instruction information, adopt the corresponding access link beam in the corresponding indicated time domain resource to perform forwarding; alternatively, after receiving the first beam instruction information, the NCR may, without receiving another instruction, adopt the corresponding access link beam in the corresponding indicated time domain resource to perform forwarding based on the first beam instruction information.

[0097] In some embodiments, support for the first beam instruction information by the NCR is optional (may or may not be supported), or is mandatory, or is conditionally mandatory (e.g., supported when a condition (e.g., working in frequency band FR2) is met).

[0098] For example, the first DCI format is used for access link beam direction. The downlink control information of the first DCI format may not be used to schedule a PDSCH or a PUSCH, or the downlink control information of the first DCI format may be used to schedule a PDSCH or a PUSCH. The first DCI format may be a newly introduced DCI format (e.g., DCI format 2_8, 2_9, or 2_10, etc.) or an existing DCI format (e.g., 1_1 or 2_0, etc.), and the first DCI format may be the same as or different from the second DCI format (the existing DCI format still currently supports the functions in the embodiments of the present invention). However, the embodiments of the present invention are not limited thereto.

[0099] In some embodiments, "downlink control information in the first DCI format" or "adopting downlink control information in the first DCI format" or "DCI in the first DCI format" or "first DCI" may be replaced with "first DCI format."

[0100] For example, the third instruction information may include one or more fourth information fields for indicating beams and one or more fifth information fields for indicating time domain resources, and the transmission unit of the transmitter will not transmit on time domain resources other than those indicated (by the third instruction information). For example, the third instruction information is a first DCI, and one fourth information field is used to indicate one access link beam index, or to indicate at most one access link beam index, or to indicate multiple access link beam indexes. The access link beam index may include a beam index corresponding to an access link beam (or an (actual) physical beam) and / or a beam index not corresponding to a beam (or an (actual) physical beam).

[0101] In some embodiments, the beam index range is predefined and / or set / instructed by higher layer signaling. For example, all beam indices within the beam index range may be predefined or set / instructed by higher layer signaling, or some beam indices may be predefined and some beam indices may be set / instructed by higher layer signaling. In the latter case, for example, beam indices corresponding to beams may be predefined and beam indices not corresponding to beams may be set / instructed by higher layer signaling, but this is not limitative.

[0102] In some embodiments, one fifth information field is used to indicate one time domain resource index, or at most one time domain resource index, or multiple time domain resource indexes, which may be replaced by a sequence number.

[0103] In some embodiments, the fifth information field corresponds to a time domain resource table. The time domain resource table is predefined and / or configured by the first RRC message or another RRC message. The time domain resource table includes one or more time domain resource configurations. A time domain resource (TDRA) table (or simply referred to as a TDRA table) includes at least one row (column). For convenience, hereinafter, one row (column) is referred to as one TDRA configuration. One TDRA configuration may include one time domain resource, multiple time domain resources, or no time domain resources. One time domain resource may be contiguous or discontinuous.

[0104] In some embodiments, a time domain resource is defined by one or more of the following parameters, for example, slot shift K3, symbol shift S, duration L (L) for determining the time domain resource, and subcarrier spacing. These parameters are predefined and / or configured by higher layer signaling. The slot shift K3 refers to a shift value between the start slot of the time domain resource or a first slot corresponding to / overlapping / associated with the start slot of the time domain resource and a reference point. The reference point may be determined based on at least a slot or symbol in which DCI carrying second beam indication information is located, or a slot or symbol in which PUCCH / PUSCH of HARQ feedback of DCI or PDCCH carrying the second beam indication information is located. When one time domain resource configuration includes multiple time domain resources, the reference points of the slot shifts of different time domain resources may be the same (e.g., all determined based on at least the slot or symbol where the DCI of the second beam indication information is located) or different (e.g., for the first time domain resource, it is determined based on at least the slot or symbol where the DCI of the second beam indication information is located, and for the subsequent time domain resources, it is determined based on at least the slot or symbol where the previous time domain resource is located). The symbol shift S refers to the shift value between the first symbol of the time domain resource and the boundary / start symbol / first symbol of the starting slot, or the start symbol / first symbol of the DCI or PDCCH / PDCCH MO carrying the second beam indication information. The length L of the time domain resource, for example, represents the number of symbols included in the time domain resource. The symbol shift S and / or the length L of the time domain resource, for example, ensure that the configured time domain resources are always in the same slot, or the configured time domain resources may be in the same slot or may be cross-slot. The number of time domain resources included in each setting in the time domain resource table may be the same or different.

[0105] In some embodiments, the time domain resources in a configuration can be defined in the form of a list or a sequence. For example, an IE is introduced, which includes the above parameters defining a time domain resource. A configuration includes a list or a sequence, which includes one or more fields corresponding to the above IE.

[0106] In some embodiments, the fifth information field may indicate one time domain resource, multiple time domain resources, or no time domain resource by indicating a configuration in a time domain resource table.

[0107] In some embodiments, the time domain resource index may include a time domain resource index corresponding to a time domain resource and / or a time domain resource index not corresponding to a time domain resource. For example, the time domain resource index is an index or sequential number of a configuration in one column (row) in a time domain resource table corresponding to the fifth information field. When all the configurations in the time domain resource table include a time domain resource, the time domain resource index includes only the time domain resource index corresponding to the time domain resource. When the time domain resource table includes a configuration including a time domain resource and a configuration not including a time domain resource, the time domain resource index includes the time domain resource index corresponding to the time domain resource and the time domain resource index not corresponding to the time domain resource. For example, if all the settings in the time domain resource list include time domain resources and all the values ​​in the time domain resource index correspond to the settings in the time domain resource table, the time domain resource index only includes the time domain resource indexes corresponding to the time domain resources; if some values ​​in the time domain resource index correspond to the settings in the time domain resource table and some values ​​do not correspond to any setting in the time domain resource table, the time domain resource index includes the time domain resource indexes corresponding to the time domain resources and the time domain resource indexes not corresponding to the time domain resources, among which the time domain indexes not corresponding to the time domain resources are, for example, predefined and / or configured by higher layer signaling.

[0108] The following describes how to determine / indicate the second beam. For example, the second beam is a backhaul link beam, which refers to a beam used for the backhaul link when the forwarding unit of the forwarder performs forwarding, or a beam used on the network equipment side of the forwarder. That is, the forwarding unit of the forwarder uses the first beam to forward signals to or from the network equipment side (i.e., used for the backhaul link or forwarding), and / or the second beam is a control link beam (i.e., used for the control link or for communication / information interaction between the NCR / NCR-MT and the network equipment). For example, the second beam includes a downlink beam (or a receive beam used to receive downlink signals and / or channels from the network equipment (awaiting forwarding to NCR / NCR-MT and / or (NCR / NCR-Fwd))) and / or an uplink beam (or a transmit beam used to transmit uplink signals and / or channels to the network equipment (to be forwarded to the network equipment by NCR / NCR-MT and / or UE / (NCR / NCR-Fwd))).

[0109] In some embodiments, the second beam may be determined based on the first indication and / or predefined rules.

[0110] In some embodiments, the second beam includes a (downlink) beam determined by a QCL assumption of a CORESET with a smallest ID and / or an (uplink) beam determined by a spatial relationship (within a CORESET configured for the first serving cell) of a PUCCH with a smallest (PUCCH resource) ID. For example, for a beam determined based on a QCL assumption of a CORESET with a smallest ID, the CORESET with a smallest ID is a first DL BWP and / or a CORESET with an ID at a first time position. The CORESET may be CORESET#0, the first DL BWP is located in a Pcell, and / or the first DL BWP is an initial DL BWP or a default DL BWP or an active DL BWP (or a DL BWP that initiates / executes a beam failure recovery / corresponding random access procedure), and the first time location includes the following: the latest / last slot in which one or more CORESETs are monitored by the NCR-MT (e.g., in an active BWP of a serving cell (e.g., a Pcell) / in the above-mentioned first DL BWP) ("the latest slot in which one or more CORESETs are monitored by the NCR-MT", or the latest / last slot in which the NCR-MT monitors (one or more) CORESETs).For example, for a beam determined based on the spatial relationship of a PUCCH with a minimum PUCCH resource ID, the PUCCH with the minimum PUCCH resource ID is the PUCCH with the lowest PUCCH resource ID in the first UL BWP and / or the second time position, where the first UL BWP is located in a Pcell, and / or the first UL BWP is the initial UL BWP, default UL BWP, or active UL BWP (or the UL BWP that initiates / executes a beam failure recovery / corresponding random access procedure), and the second time position includes the following: the latest / last slot in which the NCR-MT transmits a PUCCH (e.g., within the active BWP of the serving cell) ("the latest slot in which PUCCH is transmitted by the NCR-MT," or the most recent / last one slot in which the NCR-MT transmits a PUCCH).

[0111] In some embodiments, the second beam comprises (a downlink and / or uplink beam defined by) a designated unified TCI.

[0112] For example, the second beam is a (downlink) beam determined by the QCL assumption of the CORESET with the smallest ID and / or an (uplink) beam determined based on the spatial relationship (within the CORESET configured for the first serving cell) of the PUCCH with the smallest (PUCCH resource) ID when the Rel-15 / 16 beam indication framework is used for the control link, and is a downlink and / or uplink beam determined by the unified TCI indicated when the Rel-17 beam indication framework (i.e., the unified TCI framework) is used for the control link.

[0113] In some embodiments, the second beam is indicated by the second indication information, and the second beam is determined based on the second indication information, for example, the second beam may be determined based on a first information field in the second indication information, and detailed description thereof will be omitted here.

[0114] In some embodiments, the method further comprises: In the event of a beam failure, the NCR-MT does not monitor or receive the first DCI (format) and / or second DCI, and the description of the first DCI and second DCI has been described above, so detailed description thereof will be omitted here.

[0115] In some embodiments, the NCR-MT does not monitor the first DCI (format) during the beam failure recovery process (or until or before BFR is successful).

[0116] In some embodiments, after successful BFR, the NCR-MT monitors a first DCI (format), for example, employing a first beam to monitor the first DCI format.

[0117] In some embodiments, the NCR-MT does not monitor the first DCI (format) until (or before) receiving first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / setting) and / or third instruction information (or access link beam setting / setting) and / or applying the first instruction information and / or second instruction information and / or third instruction information (or applying the beam instructed by the above-mentioned instruction information).

[0118] In some embodiments, after receiving first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / setting) and / or third instruction information (or access link beam setting / setting), and / or applying the first instruction information and / or second instruction information and / or third instruction information (or applying the beam instructed by the above-mentioned instruction information), the NCR-MT monitors the first DCI (format).

[0119] In some embodiments, (prior to beam failure) the NCR / NCR-MT is (configured / instructed to) monitor the first DCI in the above-mentioned SS (first SS) (search space provided by recoverySearchSpaceId) or in a second SS (another SS), where the CORESETs associated with the second SS and the first SS may be the same or different.

[0120] In some embodiments, after BFR, the NCR / NCR-MT does not monitor the first DCI. After BFR is successful, the NCR-MT monitors the first DCI (format) (adopting the first beam). The NCR-MT does not monitor the first DCI (format) until (or before) it receives first instruction information (or control link beam instruction / configuration) and / or second instruction information (or backhaul link beam configuration / configuration) and / or third instruction information (or access link beam configuration / configuration) and / or applies the first instruction information and / or second instruction information and / or third instruction information (or applies the beam instructed by the above instruction information). After receiving the first instruction information (or the control link beam instruction / configuration) and / or the second instruction information (or the backhaul link beam configuration / instruction) and / or the third instruction information (or the access link beam configuration / instruction), and / or applying the first instruction information and / or the second instruction information and / or the third instruction information (or applying the beam instructed by the above-mentioned instruction information), the NCR-MT monitors the first DCI (format). Note that the description of the above-mentioned embodiment can be referred to for how to monitor the DCI / PDCCH.

[0121] In some embodiments, the method further comprises: In the event of a beam failure, the NCR-MT monitors a first DCI (format), which is used to indicate the access link beam. The first DCI has been described above, and a detailed description thereof will be omitted here. For example, after BF, the NCR / NCR-MT monitors the first DCI (at the first SS / second SS), and when / after receiving the first DCI, the random access procedure is (successfully) completed and / or the beam failure recovery is (successfully) completed. The PDCCH corresponding to the first DCI is one of the above-mentioned first PDCCHs, which may be scrambled by the RNTI for the NCR.

[0122] In some embodiments, during the beam failure recovery process (or until or before BFR is successful), the NCR-MT monitors the first DCI (format).

[0123] In some embodiments, the NCR-MT monitors a first DCI prior to the beam failure and / or the beam failure recovery.

[0124] As can be seen from the above embodiments, after detecting beam failure, the NCR may not perform forwarding, thereby allowing the time domain resource / beam corresponding to the on state of the forwarding unit to match the time domain resource / beam of data transmission between the network equipment and the terminal equipment, thereby reducing the power consumption of the forwarder, reducing interference, and improving network throughput.

[0125] In the embodiment of the present invention, a transfer control method is provided, and the description will be given from the perspective of the transfer device. Note that the description overlapping with the previous embodiment will be omitted here.

[0126] 3 is a diagram illustrating a method for controlling forwarding in an embodiment of the present invention. As shown in FIG. 3, the method includes: 301: The mobile terminal of the forwarder performs beam failure detection; and 302: In case of beam failure, the transfer unit of the transferor performs the transfer.

[0127] Note that, although the above-mentioned FIG. 3 is used to exemplify an embodiment of the present invention, the present invention is not limited thereto. For example, the execution order of each operation (step) can be appropriately adjusted, or some operations can be appropriately increased or decreased. Those skilled in the art can make appropriate modifications based on the above content without being limited to the description of the above-mentioned FIG. 3.

[0128] In some embodiments, the implementation of 301 can refer to the above 201, and the detailed description thereof will be omitted here. The method may further include the following: the transmitter (NCR / NCR-MT) performs beam failure recovery (BFR), and the implementation of 301 can refer to the above embodiments, and the detailed description thereof will be omitted here.

[0129] In some embodiments, in the event of a beam failure, the forwarding unit of the forwarder is (expected / allowed to) forward (or is turned on / able (or allowed) to forward), for example, employing a third beam for forwarding. The third beam is a backhaul link beam, and the third beam is commanded and / or established before the beam failure, i.e., in the event of a beam failure of the first cell, the forwarder forwards using the backhaul link beam before the beam failure.

[0130] For example, the backhaul link beams before the beam failure include: When the Rel-15 / 16 beam indication framework is used for the control link, the backhaul link can be determined based on a predetermined rule 1, for example, a (downlink) beam determined by the QCL assumption of the CORESET with the smallest ID and / or an (uplink) beam determined by the spatial relationship (within the CORESET configured for the first serving cell) of the PUCCH with the smallest (PUCCH resource) ID; or the backhaul link beam can be indicated by indication information. The implementation manner of the indication information can refer to the second indication information described above, and a detailed description thereof will be omitted here; and When the Rel-17 beam indication framework (i.e., unified TCI framework) is used for the control link, the backhaul link can be determined according to predetermined rule 1, or the backhaul link can be determined according to predetermined rule 2, for example, the downlink and / or uplink beam indicated / determined by the unified TCI (e.g., first indication information) indicated; or the backhaul link beam can be indicated by the indication information. Note that the implementation manner of the indication information can refer to the above-mentioned second indication information, and detailed description thereof will be omitted here.

[0131] In addition, the access link beam before the beam failure (fourth beam) may be configured by RRC signaling and / or indicated by active access link beam indication activation signaling, or may be indicated only by DCI (e.g., first DCI).

[0132] In some embodiments, the NCR-Fwd employs a third beam for transmission until the BFR is successful (or before the BFR is successful). That is, in a beam failure recovery (random access procedure), the NCR-Fwd employs a third beam for transmission until the BFR is successful. For example, after the BFR is successful, the NCR-Fwd employs a third beam for transmission, or, for example, after a first period after a first PDCCH, the NCR-Fwd employs a third beam for transmission. Note that the first PDCCH and the first period are as described above, and therefore, a repeated description will be omitted here.

[0133] As described above, after the BFR is successful or after the first period after the first PDCCH, the NCR-Fwd adopts the third beam to perform transmission until it receives the first instruction information (or control link beam instruction / setting) and / or the second instruction information (or backhaul link beam setting / instruction) and / or the third instruction information (or access link beam setting / instruction) and / or applies the first instruction information and / or the second instruction information and / or the third instruction information (or applies the beam indicated by the above-mentioned instruction information), or after the BFR is successful or after the first period after the first PDCCH, the NCR-Fwd adopts the third beam to perform transmission until it receives the first instruction information (or control link beam instruction / setting) and / or the second instruction information (or backhaul link beam setting / instruction) and / or the third instruction information (or access link beam setting / instruction) and / or applies the first instruction information and / or the second instruction information and / or the third instruction information (or applies the beam indicated by the above-mentioned instruction information). After receiving the first instruction information (or the control link beam instruction / setting) and / or the second instruction information (or the backhaul link beam setting / setting) and / or the third instruction information (or the access link beam setting / setting), and / or applying the first instruction information and / or the second instruction information and / or the third instruction information (or applying the beam instructed by the above-mentioned instruction information), the NCR-Fwd adopts the second beam and performs forwarding. Note that the above-mentioned instruction information and second beam are the same as those in the above-mentioned embodiment, and detailed description thereof will be omitted here.

[0134] In some embodiments, after receiving the first instruction information (or the control link beam instruction / setting) and / or the second instruction information (or the backhaul link beam setting / setting) and / or the third instruction information (or the access link beam setting / setting), and / or applying the first instruction information and / or the second instruction information and / or the third instruction information (or applying the beam instructed by the above instruction information), the NCR-Fwd adopts the second beam to perform forwarding. Also, if there is no instruction in the first instruction information and the second instruction information but the third instruction information indicates that the NCR can perform forwarding, the NCR performs forwarding using the predefined first beam or still using the third beam.

[0135] In some embodiments, the method further comprises: In the case of beam failure, the NCR-MT does not monitor or receive the first DCI (format) and / or the second DCI. Note that the first DCI and the second DCI have been described above, and detailed description thereof will be omitted here.

[0136] In some embodiments, the NCR-MT does not monitor the first DCI (format) during the beam failure recovery process (or until or before BFR is successful).

[0137] In some embodiments, after successful BFR, the NCR-MT monitors a first DCI (format), for example, employing a first beam to monitor the first DCI format.

[0138] In some embodiments, the NCR-MT does not monitor the first DCI (format) until (or before) receiving first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / setting) and / or third instruction information (or access link beam setting / setting) and / or applying the first instruction information and / or second instruction information and / or third instruction information (or applying the beam instructed by the above-mentioned instruction information).

[0139] In some embodiments, after receiving first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / setting) and / or third instruction information (or access link beam setting / setting), and / or applying the first instruction information and / or second instruction information and / or third instruction information (or applying the beam instructed by the above-mentioned instruction information), the NCR-MT monitors the first DCI (format).

[0140] In some embodiments, the method further comprises: In the case of beam failure, the NCR-MT monitors the first DCI (format), which is used to instruct the access link beam. Note that the first DCI has been described above, and its detailed description is omitted here.

[0141] In some embodiments, during the beam failure recovery process (or until or before BFR is successful), the NCR-MT monitors the first DCI (format).

[0142] In some embodiments, the NCR-MT monitors a first DCI prior to the beam failure and / or the beam failure recovery.

[0143] As can be seen from the above embodiments, after detecting beam failure, the NCR can perform forwarding, thereby ensuring that the time domain resource / beam corresponding to the on state of the forwarding unit matches the time domain resource / beam of data transmission between the network equipment and the terminal equipment, thereby reducing the power consumption of the forwarder, reducing interference, and improving network throughput.

[0144] In the embodiment shown in Figure 2 above, in the event of a beam failure, the transfer unit of the transferor is turned off / does not transfer. In the embodiment shown in Figure 3, in the event of a beam failure, the transfer unit of the transferor transfers. Note that the embodiments of the present invention are not limited to these, and for example, in the event of a beam failure, the transfer unit of the transferor may be turned off / does not transfer, or may transfer, based on the realization (implementation) of NCR, but a comprehensive list will be omitted here.

[0145] In the embodiment of the present invention, a transfer control method is provided, and the description will be given from the perspective of the transfer device. Note that the description overlapping with the previous embodiment will be omitted here.

[0146] 4 is a diagram illustrating a method for controlling forwarding in an embodiment of the present invention. As shown in FIG. 4, the method includes: 401: NCR-MT performs beam failure (or link failure) detection; 402: In the event of a beam failure, the NCR-MT performs BFR; and 403: NCR-Fwd does not forward if the BFR fails.

[0147] The implementation of 401-402 is the same as in the previous embodiment, and a detailed description thereof will be omitted here. The previous embodiment describes the NCR-Fwd process after successful BFR. However, in 403, if the BFR fails or if a random access problem exists, NCR-Fwd will not forward. If the random access procedure fails after the BFR fails, NCR will regard it as a radio link failure (RLF).

[0148] As can be seen from the above embodiment, after BFR fails, NCR does not perform forwarding, which allows the time domain resource / beam corresponding to the on state of the forwarding unit to match the time domain resource / beam of data transmission between the network equipment and the terminal equipment, thereby reducing the power consumption of the forwarder, reducing interference, and improving network throughput.

[0149] The inventors also discovered the following: The prerequisites for an NCR-Fwd to forward a signal within a period include the following: for that period, the NCR has both an access link beam and an applicable backhaul link beam. Currently, the standard agrees that the on-state "ON" of the NCR-Fwd is implicitly indicated by the access link beam indication. That is, in the time-domain resource (period) indicating the access link beam, the NCR-Fwd should be in the on-state and forward a signal. However, according to current progress, the NCR may receive an access link beam indication before it has an applicable backhaul link beam. There is still no corresponding method for the NCR to handle this situation.

[0150] In order to solve the above-mentioned problems, a transfer control method is provided in the embodiment of the present invention, and will be explained from the perspective of the transfer device. Note that the explanation overlapping with the previous embodiment will be omitted here.

[0151] 5 is a diagram illustrating a transmission control method according to an embodiment of the present invention. As shown in FIG. 5, the method includes: 501: The forwarder receives third instruction information.

[0152] Before the forwarder has an (applicable) backhaul link beam, the forwarder is not expected to receive the third instruction information and / or the forwarder does not apply (or is not expected to apply) the third instruction information.

[0153] In some embodiments, before the forwarder has a (applicable) backhaul link beam, the forwarder includes: before determining the backhaul link beam (based on predefined rules and / or first instruction information) (or receiving first instruction information); and / or before applying the determined backhaul link beam (based on predefined rules and / or first instruction information); and / or Before the backhaul link beam is set / instructed (or the second instruction information is received), and / or Before applying the instructed backhaul link beam (or applying the second instruction information).

[0154] For each piece of instruction information, the above-mentioned embodiments can be referred to, and detailed explanations thereof will be omitted here.

[0155] In the embodiment of the present invention, a transfer control method is provided, and the description will be given from the perspective of the transfer device. Note that the description overlapping with the previous embodiment will be omitted here.

[0156] 14 is a diagram illustrating a transfer control method in an embodiment of the present invention. As shown in FIG. 14, the method includes: 1401: The mobile terminal of the forwarder performs beam failure detection; and 1402: In the event of a beam failure, the mobile terminal of the forwarder monitors or does not monitor the first DCI and / or the second DCI, the first DCI is used to indicate the access link beam and the second DCI is used to indicate the unified TCI (status).

[0157] The implementation method of 1401-1402 can be referred to in the above-mentioned embodiment, and detailed description thereof will be omitted here.

[0158] Furthermore, specific implementation modes of the above-described forwarding control method have been described above, and a comprehensive list will not be provided here. The above-described embodiments are merely illustrative examples for explaining the embodiments of the present invention. The present invention is not limited to these. Furthermore, appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or a combination of the above-described embodiments may be used. For example, the NCR may perform BFD. Before BF, the forwarder may perform forwarding using the third beam (and / or fourth beam). After BF, the NCR-Fwd may forward a signal (using the third beam) based on the embodiment shown in FIG. 2 or FIG. 3, or may not forward a signal. Furthermore, the NCR-MT may initiate BFR. After BFR fails, the NCR-Fwd does not perform forwarding based on the embodiment shown in FIG. 4. After BFR is successful or after receiving a new configuration, the NCR-Fwd may perform forwarding using the second beam.

[0159] Although the above-described embodiments mainly describe BFD / BFR in the case of a single TRP, the embodiments of the present invention are not limited thereto and may also be applied to, for example, a multi-TRP scenario.

[0160] In some embodiments, the NCR / NCR-MT does not support (or expect to be configured for) multi-TRP operation or BFD or two sets of BFD reference signals in multi-TRP operation.

[0161] In some embodiments, the NCR / NCR-MT is configured for multi-TRP operation or BFD or two sets of BFD reference signals in multi-TRP operation. In such cases, for beam failure detection in multi-TRP operation, the network device configures two sets (sets) of BFD reference signals for the NCR, and the NCR considers beam failure for one TRP / BFD reference signal pair when the number of BFIs from the physical layer for the pair corresponding to the BFD reference signals reaches a configured threshold before a configured timer expires.

[0162] After detecting beam failure for the BFD-RS set of the serving cell (first cell), the NCR triggers beam failure recovery by starting transmission of BFR MAC CE for the BFD-RS set, selects a suitable beam for the BFD-RS set (if available), and indicates whether the suitable (new) beam is found or not along with the information about the beam failure in the BFR MAC CE for this BFD-RS set.

[0163] When a PDCCH is received, the PDCCH indicates an uplink link grant for new transmission of an HARQ process, and the HARQ process is used for transmission of a BFR MAC CE of the BFD-RS set, the beam failure recovery of the BFD-RS set is considered to be completed.

[0164] After simultaneously detecting beam failures of two BFD-RS pairs on a PCell, the NCR triggers beam failure recovery by initiating a random access procedure on the PCell, selects a suitable beam for each failed BFD-RS (if any), and indicates in the BFR MAC CE for each failed BFD-RS pair whether it has found a suitable (new) beam or does not contain beam failure information. After the random access procedure is completed, the beam failure recovery for the two BFD-RS pairs on the PCell is considered to be completed.

[0165] <Example of the second aspect> In an embodiment of the present invention, a forwarder is provided, which may be, for example, the aforementioned NCR; a network device or terminal device having a forwarding function; or one or more components or assemblies installed in the NCR, the network device, or the terminal device.

[0166] 7 is a diagram illustrating a transmitter according to an embodiment of the present invention. The principle by which the transmitter solves the problem is the same as that of the embodiment of the first aspect, so that specific implementations can refer to the embodiment of the first aspect, and redundant explanations of the same content will be omitted here.

[0167] As shown in FIG. 7, a forwarder 700 in an embodiment of the present invention includes a mobile terminal 701 and a forwarding unit 702, and the mobile terminal 701 and the forwarding unit 702 are functional entities, the functions of which can be realized by the same or different hardware modules.

[0168] The mobile terminal 701 performs beam failure detection and the forwarding unit 702 either turns off / does not forward or forwards in case of beam failure.

[0169] Alternatively, the mobile terminal 701 performs beam failure (or link failure) detection, and in the event of a beam failure, the mobile terminal 701 performs BFR, and the forwarding unit 702 does not perform forwarding in the event of the BFR failure.

[0170] Alternatively, the mobile terminal 701 receives the third instruction information and does not expect to receive the third instruction information before the forwarder has an (applicable) backhaul link beam, and / or the forwarder does not apply the third instruction information (or is not expected to apply it).

[0171] Alternatively, the mobile terminal 701 performs beam failure (or link failure) detection, and in the event of a beam failure, the forwarder mobile terminal may or may not monitor the first DCI and / or the second DCI, the first DCI being used to indicate the access link beam and the second DCI being used to indicate the unified TCI (status).

[0172] For the implementation of the mobile terminal 701 and the forwarding unit 702, reference can be made to the respective embodiments of the first aspect, and detailed description thereof will be omitted here.

[0173] 7 shows only the connection relationships or signal directions between the components or modules for convenience, but as will be understood by those skilled in the art, various related technologies such as bus connections may be employed. Furthermore, the above-described components or modules may be realized by hardware such as a processor, a memory, a transmitter, a receiver, etc., but the implementation of the present invention is not limited thereto.

[0174] The above-described embodiments are provided to exemplify the present invention, but the present invention is not limited to these, and appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or two or more of the above-described embodiments may be used in combination.

[0175] <Example of the third aspect> In the embodiment of the present invention, an information transmission method is provided, and will be described from the perspective of a network device. Here, the description of the same content as in the embodiment of the first aspect will be omitted.

[0176] 8 is a diagram illustrating an information transmission method according to an embodiment of the present invention. As shown in FIG. 8, the method includes: 801: A network device transmits third instruction information, and the network device does not transmit the third instruction information before the forwarder has a (applicable) backhaul link beam or before a second period before the forwarder has a (applicable) backhaul link beam.

[0177] In some embodiments, the second period of time includes the time required for the forwarder to apply the third indication information.

[0178] As for the third instruction information, reference can be made to the embodiment of the first aspect, and detailed description thereof will be omitted here.

[0179] Alternatively, although not shown, the method may include: After the NCR beam failure recovery is successful (in the third period), the network device sends first instruction information and / or second instruction information and / or third instruction information to the NCR, where the first instruction information is used to instruct / configure a control link beam, the second instruction information is used to instruct a backhaul link beam, and the third instruction information is used to instruct an access link beam. For example, the third period may be longer than the first period, but the embodiment of the present invention is not limited thereto.

[0180] Note that, although the above-mentioned FIG. 8 is used to exemplify an embodiment of the present invention, the present invention is not limited thereto. For example, the execution order of each operation (step) can be appropriately adjusted, or some operations can be appropriately increased or decreased. Those skilled in the art can make appropriate modifications based on the above content without being limited to the description of the above-mentioned FIG. 8.

[0181] Furthermore, although only the steps or processes related to the present invention are described, the present invention is not limited thereto. The method in the embodiments of the present invention may further include other steps or processes, and the specific contents of these steps or processes can be found in the related art.

[0182] The above-described embodiments are provided to exemplify the present invention, but the present invention is not limited to these, and appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or two or more of the above-described embodiments may be used in combination.

[0183] <Example of the fourth aspect> An embodiment of the present invention provides a network device.

[0184] 9 is a diagram illustrating a network device according to an embodiment of the present invention. The principle by which the network device solves the problem is the same as that of the method according to the embodiment of the third aspect, so that specific implementations thereof can refer to the embodiment of the third aspect, and redundant explanations of the same content will be omitted here.

[0185] As shown in FIG. 9, a network device 900 in an embodiment of the present invention includes a sending unit 901 .

[0186] The transmitting unit 901 transmits third instruction information, which does not transmit the third instruction information before the forwarder has an (applicable) backhaul link beam or before a second period before the forwarder has an (applicable) backhaul link beam.

[0187] Alternatively, the transmitting unit 901 transmits first instruction information and / or second instruction information and / or third instruction information to the NCR after successful NCR beam failure recovery (third period), where the first instruction information is used to instruct / configure a control link beam, the second instruction information is used to instruct a backhaul link beam, and the third instruction information is used to instruct an access link beam.

[0188] For the implementation of the sending unit 901 and each piece of information, please refer to the embodiment of the third aspect, and detailed description thereof will be omitted here.

[0189] Although the components and modules related to the present invention have been described above, the present invention is not limited thereto. The network device 900 in the embodiment of the present invention may further include other components or modules, and the specific contents of these components or modules can be found in the related art.

[0190] 9 shows only the connection relationships or signal directions between each component or module for convenience, but as will be understood by those skilled in the art, various related technologies such as bus connection may be adopted. Furthermore, each of the above-described components or modules may be realized by hardware such as a processor, memory, transmitter, receiver, etc., but the implementation of the present invention is not limited thereto.

[0191] The above-described embodiments are provided to exemplify the present invention, but the present invention is not limited to these, and appropriate modifications can be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or two or more of the above-described embodiments may be used in combination.

[0192] <Example of the fifth aspect> In an embodiment of the present invention, a communication system is provided. FIG. 1 is a diagram illustrating the communication system in the embodiment of the present invention. As shown in FIG. 1, the communication system 100 includes a network device 101, a forwarder 102, and a terminal device 103. For convenience, FIG. 1 illustrates only one network device, one forwarder, and one terminal device, but the embodiment of the present invention is not limited thereto.

[0193] In an embodiment of the present invention, conventional traffic (services) or future traffic may be transmitted between the network device 101 and the terminal device 103. For example, such traffic may include, but is not limited to, eMBB (enhanced Mobile Broadband), mMTC (massive Machine Type Communication), URLLC (Ultra-Reliable and Low-Latency Communication), etc. The forwarder 102 is configured to execute the forwarding control method described in the embodiment of the first aspect, and the network device 101 is configured to execute the information transmission method described in the embodiment of the third aspect, the contents of which are incorporated herein and will not be described in detail herein.

[0194] An embodiment of the present invention further provides an electronic device, which may be, for example, a transporter or a network device.

[0195] Fig. 6 is a block diagram of an electronic device according to an embodiment of the present invention. As shown in Fig. 6, the electronic device 600 may include a processor 66 (e.g., a central processing unit (CPU)) and a memory 620, which is connected to the processor 66. The memory 620 can store various data and can also store a program 630 for information processing, and can execute the program 630 under the control of the processor 66.

[0196] For example, the processor 66 may be configured to execute a program to implement the transfer control method described in the embodiment of the first aspect.

[0197] Also, for example, the processor 66 may be configured to execute a program to implement the information transmission method described in the embodiment of the third aspect.

[0198] As shown in Fig. 6, the electronic device 600 may further include a transceiver 640, an antenna 650, etc., among which the functions of the above-mentioned components are the same as those of the prior art, and therefore detailed descriptions thereof will be omitted here. Note that the electronic device 600 does not need to include all the components shown in Fig. 6. Furthermore, the electronic device 600 may further include components not shown in Fig. 6, and for this, reference can be made to the prior art.

[0199] In a further embodiment of the present invention, a computer-readable program is provided, which, when executed by a transfer device, causes a computer to perform the transfer control method described in the embodiment of the first aspect in the transfer device.

[0200] An embodiment of the present invention further provides a storage medium storing a computer-readable program, wherein the computer-readable program causes a computer to execute the transfer control method according to the embodiment of the first aspect in a transfer device.

[0201] In a further embodiment of the present invention, a computer-readable program is provided, which, when executed by a network device, causes a computer to perform the information transmission method described in the embodiment of the third aspect on the network device.

[0202] An embodiment of the present invention further provides a storage medium storing a computer-readable program, wherein the computer-readable program causes a computer to execute the information transmission method described in the embodiment of the third aspect in a network device.

[0203] The above-described apparatus and methods may be realized by software or hardware, or by a combination of hardware and software. The present invention also relates to a computer-readable program as described below, which, when executed by a logic component, causes the logic component to realize the above-described apparatus or component, or to perform each of the above-described methods or steps. The logic component may be, for example, an FPGA (Field Programmable Gate Array), a microprocessor, or a processing unit used in a computer. The present invention also relates to a storage medium, such as a hard disk, magnetic disk, optical hard disk, DVD, or flash memory, that stores the above-described program.

[0204] Furthermore, one or more combinations of the functional blocks illustrated in the figures and / or one or more combinations of the functional blocks may be implemented as a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic component, a discrete gate or transistor logic component, a discrete hardware assembly, or any other suitable combination for performing the functions described herein. Also, one or more combinations of the functional blocks illustrated in the figures and / or one or more combinations of the functional blocks may be further implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors communicatively coupled with a DSP, or any other configuration.

[0205] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and any modifications to the present invention that do not depart from the spirit of the present invention fall within the technical scope of the present invention.

[0206] Furthermore, with respect to the above-mentioned embodiments, the following supplementary notes are disclosed.

[0207] <Group 1> (Appendix 1) 1. A method of forwarding control, applied to a forwarder, comprising: the forwarder mobile terminal performs beam failure detection (for the first cell); In the event of a beam failure (of the first cell) (when the transmitter detects a beam failure), the transmitter's transmission unit is (expected to) turn off / not transmit (or is not allowed to turn on / transmit).

[0208] (Appendix 2) 2. The method of claim 1, comprising: The first cell is a primary cell Pcell, PScell ​​or Scell.

[0209] (Appendix 3) The method according to claim 1 or 2, further comprising: The transporter (NCR / NCR-MT) performs beam failure recovery (BFR) (for the first cell).

[0210] (Appendix 4) 4. The method of claim 3, The beam failure recovery includes performing random access (in the first cell) or transmitting a MAC CE for SR and / or BFR (to the second cell).

[0211] (Appendix 5) 5. The method of any one of claims 1 to 4, further comprising: The NCR-Fwd is turned off / is (expected to) not forward (or is not allowed to be turned on / forward) until (or before) the BFR is successful.

[0212] (Appendix 6) 6. The method of any one of claims 1 to 5, further comprising: After BFR is successful, the forwarder performs forwarding (adopting the first beam) (until (or before) receiving first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / setting) and / or third instruction information (or access link beam setting / setting) and / or applying the first instruction information and / or second instruction information and / or third instruction information (or applying the beam instructed by the above-mentioned instruction information)).

[0213] (Appendix 7) 6. The method of any one of claims 1 to 5, further comprising: After the first period after the first PDCCH (e.g., after 28 symbols from the last symbol of a first PDCCH reception in a search space set by recoverySearchSpaceId for which the UE detects a DCI format with CRC scrambled by C-RNTI or MCS-C-RNTI), forwarding is performed in NCR-Fwd (using the first beam) until (or before) the UE receives first instruction information (or control link beam instruction / configuration) and / or second instruction information (or backhaul link beam configuration / configuration) and / or third instruction information (or access link beam configuration / configuration) and / or applies the first instruction information and / or second instruction information and / or third instruction information (or applies the beam indicated by the above-mentioned instruction information).

[0214] (Appendix 8) 8. The method of claim 7, The first PDCCH is used to determine the success of beam failure recovery and / or the completion of the random access procedure.

[0215] (Appendix 9) 9. The method of any one of claims 6 to 8, comprising: The first beam is the same as the beam used in the (most recent) random access attempt / process (or successful random access attempt / process) (in the beam failure recovery, or for the beam failure recovery, or for the beam failure recovery initialization) (including a beam determined based on an SSB associated with the RO (RACH occasion) (located / used) of the most recent PRACH transmission).

[0216] (Appendix 10) 10. The method of any one of claims 6 to 9, comprising: The first beam includes a downlink beam (or a receiving beam used to receive downlink signals and / or channels from the network equipment (awaiting forwarding to NCR / NCR-MT and / or (NCR / NCR-Fwd))) and / or an uplink beam (or a transmitting beam used to transmit uplink signals and / or channels (from NCR / NCR-MT and / or UE / forwarded to the network equipment by (NCR / NCR-Fwd)) to the network equipment).

[0217] (Appendix 11) 11. The method of any one of claims 6 to 10, comprising: The first beam has index q new the same antenna port quasi-collocation parameters as the ones associated with index (or the (downlink) beam determined by the QCL parameters), and / or the same spatial filter as for the last PRACH transmission (or the (uplink) beam determined by the spatial filter), and / or a (downlink and / or uplink) beam determined based on an SSB associated with the RO (RACH occasion) (located / used) of the last PRACH transmission, and / or a downlink beam for receiving the first PDCCH and / or an uplink beam for transmitting the last PRACH (transmission).

[0218] (Appendix 12) 12. The method of any one of claims 6 to 11, comprising: The first beam is used for forwarding when the NCR-MT / C-link has or does not have reception or transmission.

[0219] (Appendix 13) 13. The method of any one of claims 6 to 12, comprising: The first beam may be predefined (eg, established by negotiation or determined based on a predefined rule) or directed.

[0220] (Appendix 14) 14. The method of any one of claims 6 to 13, comprising: The first beam is a backhaul link beam (i.e., used for a backhaul link or forwarding) and / or a control link beam (i.e., used for a control link or for communication / information interaction between the forwarder and network equipment).

[0221] (Appendix 15) 6. The method of any one of claims 1 to 5, further comprising: The NCR-Fwd is (expected to) be turned off / not perform forwarding (or is not allowed to be turned on / perform forwarding) before the beam failure recovery is successful until (or before) it receives first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / instruction) and / or third instruction information (or access link beam setting / instruction) and / or applies the first instruction information and / or second instruction information and / or third instruction information (or applies the beam instructed by the above-mentioned instruction information).

[0222] (Appendix 16) 16. The method of any one of claims 1 to 15, further comprising: The forwarder performs forwarding (adopting the second beam) after receiving first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / instruction) and / or third instruction information (or access link beam setting / instruction) and / or applying the first instruction information and / or second instruction information and / or third instruction information (or applying the beam instructed by the above-mentioned instruction information).

[0223] (Appendix 16a) 17. The method of any one of claims 1 to 16, comprising: After receiving first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / setting) and / or third instruction information (or access link beam setting / setting), and / or applying the first instruction information and / or second instruction information and / or third instruction information (or applying the beam instructed by the above instruction information), the forwarder adopts the first beam or the third beam and performs forwarding.

[0224] (Appendix 17) 16. The method of any one of claims 5 to 16a, comprising: The successful beam failure recovery includes: (For CFRA) the NCR-MT has detected a DCI (format) CRC-scrambled by the C-RNTI or MCS-C-RNTI or RNTI for NCR in the search space (SS) provided by recoverySearchSpaceId (or has received one PDCCH transmission in the SS, where the PDCCH transmission is addressed to the C-RNTI or MCS-C-RNTI or RNTI for NCR), and / or has received a first PDCCH (where the first PDCCH is addressed to the C-RNTI or MCS-C-RNTI or RNTI for NCR, e.g., for CFRA, the first PDCCH is received within the RAR window after (NCR / NCR-MT) sending an MsgA or PRACH), and / or the (non-contention) random access procedure (in or for the beam failure recovery or for the beam failure recovery initialization) has (successfully) completed completed), and / or beam failure recovery is (successfully) completed; or (For CBRA) The NCR-MT has detected a DCI (format) CRC-scrambled by the C-RNTI or MCS-C-RNTI or RNTI for NCR in the search space provided by recoverySearchSpaceId (or has received one PDCCH transmission at the SS, where the PDCCH transmission is addressed to the C-RNTI or MCS-C-RNTI or RNTI for NCR), and / or has received a first PDCCH (where the first PDCCH is addressed to the C-RNTI or MCS-C-RNTI or RNTI for NCR, e.g., in 2-step CBRA, the first PDCCH is received after the NCR / NCR-MT has sent MsgA in 4-step In CBRA, the first PDCCH is received within the contention resolution window after (NCR / NCR-MT) sends Msg.3), and / or contention resolution is successful, and / or the (contention-based) random access procedure (in the beam failure recovery, for the beam failure recovery, or for the beam failure recovery initialization) is (successfully) completed (the Random Access procedure successfully completed), and / or beam failure recovery is (successfully) completed.

[0225] (Appendix 18) 18. The method of any one of claims 6 to 17, comprising: The first instruction information is used to indicate / configure a control link beam (used to set and / or activate TCI state / SRI (SpatialRelationInfo) (for PDSCH and / or PDCCH and / or PUCCH and / or SRS)) and includes RRC signaling, and / or MAC CE, and / or DCI.

[0226] (Appendix 19) 19. The method of any one of claims 6 to 18, comprising: The first instruction information includes: MAC CE activation command for a TCI state (or an activation for a TCI state) or (optional parameters) tci-StatesPDCCH-ToAddList(-r17 / r18) and / or tci-StatesPDCCH-ToReleaseList(-r17 / r18); and / or PUCCH resource(s) for PUCCH-SpatialRelationInfo(-r17 / r18) and / or (MAC CE) activation command for PUCCH-SpatialRelationInfo(-r17 / r18); and / or tci-StatesToAddModList(-r17 / r18) and / or tci-StatesToReleaseList(-r17 / r18) (for PDSCH configuration / in PDSCH-Config); and / or dl-OrJointTCI-StateList(-r17 / r18) and / or dl-OrJointTCI-StateToAddModList(-r17 / r18) and / or dl-OrJointTCI-StateToReleaseList(-r17 / r18) (for PDSCH configuration / in PDSCH-Config); and / or ul-TCI-ToAddModList; and / or A second DCI (for indicating (or indicating) a unified TCI) (e.g., DCI format 1_1 / 1_2, etc.).

[0227] (Appendix 20) 20. The method of any one of claims 16 to 19, further comprising: The second beam (including an uplink beam and / or a downlink beam) is determined (based on the first instruction information and / or predefined rules) (or the second beam is predefined (including being determined (based on the first instruction information and / or predefined rules))).

[0228] (Appendix 21) 21. The method of any one of claims 16 to 20, comprising: The second beam comprises: a (downlink) beam determined by the QCL assumption of the CORESET with the smallest ID and / or an (uplink) beam determined by the spatial relationship (within the CORESET configured for the first serving cell) of the PUCCH with the smallest (PUCCH resource) ID; and / or A downlink and / or uplink beam determined by a designated unified TCI.

[0229] (Appendix 22) 18. The method of any one of claims 6 to 17, comprising: The second instruction information is used to instruct a backhaul link beam (e.g., MAC CE).

[0230] (Appendix 23) 23. The method of any one of appendixes 16, 16a, or 22, comprising: The second beam is instructed by the second instruction information.

[0231] (Appendix 24) 23. The method of claim 22, further comprising: determining the second beam (based on the second indication information).

[0232] (Appendix 25) 18. The method of any one of claims 6 to 17, comprising: The third instruction information is used to instruct an access link beam.

[0233] (Appendix 26) 18. The method of any one of claims 6 to 17, comprising: The third instruction information includes a periodic / semi-static (or provided by RRC signaling) access link beam instruction, an activation command (MAC CE / DCI) (for activating the access link beam instruction), information for setting / instructing the first DCI (monitored by the NCR / NCR-MT), and the first DCI (for instructing the access link beam).

[0234] (Appendix 27) 27. The method of any one of claims 1 to 26, further comprising: In the event of beam failure, the NCR-MT does not monitor (or receive) the first DCI (format) and / or the second DCI, and the first DCI is used to direct the access link beam.

[0235] (Appendix 28) 28. The method of any one of claims 1 to 27, comprising: During the beam failure recovery process (or until or before BFR is successful), the NCR-MT does not monitor the first DCI (format).

[0236] (Appendix 29) 29. The method according to claim 27 or 28, After BFR is successful, the NCR-MT (adopting the first beam) monitors the first DCI (format).

[0237] (Appendix 30) 29. The method according to claim 27 or 28, The NCR-MT does not monitor the first DCI (format) until (or before) it receives first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / instruction) and / or third instruction information (or access link beam setting / instruction) and / or applies the first instruction information and / or second instruction information and / or third instruction information (or applies the beam instructed by the above-mentioned instruction information).

[0238] (Appendix 31) 31. The method of claim 30, After receiving first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / instruction) and / or third instruction information (or access link beam setting / instruction), and / or applying the first instruction information and / or second instruction information and / or third instruction information (or applying the beam instructed by the above-mentioned instruction information), the NCR-MT monitors the first DCI (format).

[0239] (Appendix 32) 27. The method of any one of claims 1 to 26, further comprising: In the event of a beam failure, the NCR-MT monitors a first DCI (format), which is used to indicate an access link beam.

[0240] (Appendix 33) 28. The method of any one of claims 1 to 27, comprising: During the beam failure recovery process (or until BFR is successful, or before BFR is successful), the NCR-MT monitors the first DCI (format).

[0241] (Appendix 34) 34. The method of any one of claims 1 to 33, comprising: The NCR-MT monitors a first DCI before the beam failure and / or the beam failure recovery.

[0242] (Appendix 35) 1. A method of forwarding control, applied to a forwarder, comprising: the mobile terminal of the forwarder performs beam failure (or link failure) detection (for the first cell); In the event of beam failure, the NCR-MT does not monitor (or does not receive) the first DCI (format) and / or the second DCI, and the first DCI is used to indicate the access link beam, or the NCR-MT monitors the first DCI (format), and the second DCI is used to indicate the unified TCI status.

[0243] (Appendix 36) a transporter, a memory and a processor; The storage device stores a computer program, The processor is configured to execute the computer program to implement the transfer control method according to any one of Supplementary Notes 1 to 35.

[0244] (Appendix 37) An information transmission method, applied to a network device, comprising: The network device transmits first instruction information and / or second instruction information and / or third instruction information to the NCR after (a third period of) successful NCR beam failure recovery; The first instruction information is used to instruct / configure a control link beam, the second instruction information is used to instruct a backhaul link beam, and the third instruction information is used to instruct an access link beam.

[0245] (Appendix 38) A network device, a memory and a processor; The storage device stores a computer program, The processor is configured to execute the computer program to implement the information transmission method of claim 37.

[0246] <Group 2> (Appendix 1) 1. A method of forwarding control, applied to a forwarder, comprising: the mobile terminal of the forwarder performs beam failure (or link failure) detection (for the first cell); In the event of a beam failure (of the first cell), the transfer unit of the transferor is (expected / allowed) to transfer (or is (able (or allowed) to) turn on / transfer).

[0247] (Appendix 2) 2. The method of claim 1, comprising: The first cell is a Pcell, a PScell, or an Scell.

[0248] (Appendix 3) The method according to claim 1 or 2, further comprising: The transporter (NCR / NCR-MT) performs Beam Failure Recovery (BFR).

[0249] (Appendix 4) 4. The method of claim 3, The beam failure recovery includes initiating random access (in the first cell) or transmitting a MAC CE for SR and / or BFR (to the second cell).

[0250] (Appendix 5) 5. The method according to claim 3 or 4, further comprising: (Until (or before) the BFR is successful, the NCR-Fwd is (expected / allowed) to forward (by adopting a third beam).

[0251] (Appendix 6) 6. The method of any one of claims 1 to 5, further comprising: After the BFR is successful, the NCR-Fwd is (expected / permitted to) perform forwarding (adopting the third beam) (until (or before) it receives the first instruction information (or control link beam instruction / setting) and / or the second instruction information (or backhaul link beam setting / setting) and / or the third instruction information (or access link beam setting / setting) and / or applies the first instruction information and / or the second instruction information and / or the third instruction information (or applies the beam instructed by the above-mentioned instruction information)).

[0252] (Appendix 7) 6. The method of any one of claims 1 to 5, further comprising: After the first period after the first PDCCH (e.g., after 28 symbols from the last symbol of a first PDCCH reception in a search space set provided by recoverySearchSpaceId for which the UE detects a DCI format with CRC scrambled by C-RNTI or MCS-C-RNTI), (until (or before) receiving the first instruction information (or control link beam instruction / configuration) and / or the second instruction information (or backhaul link beam configuration / instruction) and / or the third instruction information (or access link beam configuration / instruction) and / or applying the first instruction information and / or the second instruction information and / or the third instruction information (or applying the beam instructed by the above-mentioned instruction information)), NCR-Fwd is (expected / permitted to) perform forwarding (adopting the third beam).

[0253] (Appendix 8) 8. The method of any one of claims 1 to 7, further comprising: The forwarder performs forwarding (adopting the second beam) after receiving first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / instruction) and / or third instruction information (or access link beam setting / instruction) and / or applying the first instruction information and / or second instruction information and / or third instruction information (or applying the beam instructed by the above-mentioned instruction information).

[0254] (Appendix 8a) 9. The method of any one of claims 1 to 8, comprising: After receiving first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / setting) and / or third instruction information (or access link beam setting / setting), and / or applying the first instruction information and / or second instruction information and / or third instruction information (or applying the beam instructed by the above-mentioned instruction information), the forwarder adopts the second beam or the third beam and performs forwarding.

[0255] (Appendix 9) 10. The method of any one of appendices 5 to 8a, comprising: The successful beam failure recovery includes: (For CFRA) the NCR-MT has detected a DCI (format) CRC-scrambled by the C-RNTI or MCS-C-RNTI or RNTI for NCR in the search space (SS) provided by recoverySearchSpaceId (or has received one PDCCH transmission in the SS, where the PDCCH transmission is addressed to the C-RNTI or MCS-C-RNTI or RNTI for NCR), and / or has received a first PDCCH (where the first PDCCH is addressed to the C-RNTI or MCS-C-RNTI or RNTI for NCR, e.g., for CFRA, the first PDCCH is received within the RAR window after (NCR / NCR-MT) sending an MsgA or PRACH), and / or the (non-contention) random access procedure (in or for the beam failure recovery or for the beam failure recovery initialization) has (successfully) completed completed), and / or beam failure recovery is (successfully) completed; or (For CBRA) The NCR-MT has detected a DCI (format) CRC-scrambled by the C-RNTI or MCS-C-RNTI or RNTI for NCR in the search space provided by recoverySearchSpaceId (or has received one PDCCH transmission at the SS, where the PDCCH transmission is addressed to the C-RNTI or MCS-C-RNTI or RNTI for NCR), and / or has received a first PDCCH (where the first PDCCH is addressed to the C-RNTI or MCS-C-RNTI or RNTI for NCR, e.g., in 2-step CBRA, the first PDCCH is received after the NCR / NCR-MT has sent MsgA in 4-step In CBRA, the first PDCCH is received within the contention resolution window after (NCR / NCR-MT) sends Msg.3), and / or contention resolution is successful, and / or the (contention-based) random access procedure (in the beam failure recovery, for the beam failure recovery, or for the beam failure recovery initialization) is (successfully) completed (the Random Access procedure successfully completed), and / or beam failure recovery is (successfully) completed.

[0256] (Appendix 10) 10. The method of any one of claims 6 to 9, comprising: The first instruction information includes TCI state / SRI (used to set and / or activate SpatialRelationInfo) (for PDSCH and / or PDCCH and / or PUCCH and / or SRS), RRC signaling, and / or MAC CE, and / or DCI, used to indicate / configure a control link beam.

[0257] (Appendix 11) 11. The method of any one of claims 6 to 10, comprising: The first instruction information includes: MAC CE activation command for a TCI state (or an activation for a TCI state) or (optional parameters) tci-StatesPDCCH-ToAddList(-r17 / r18) and / or tci-StatesPDCCH-ToReleaseList(-r17 / r18); and / or PUCCH resource(s) for PUCCH-SpatialRelationInfo(-r17 / r18) and / or (MAC CE) activation command for PUCCH-SpatialRelationInfo(-r17 / r18); and / or tci-StatesToAddModList(-r17 / r18) and / or tci-StatesToReleaseList(-r17 / r18) (for PDSCH configuration / in PDSCH-Config); and / or dl-OrJointTCI-StateList(-r17 / r18) and / or dl-OrJointTCI-StateToAddModList(-r17 / r18) and / or dl-OrJointTCI-StateToReleaseList(-r17 / r18) (for PDSCH configuration / in PDSCH-Config); and / or ul-TCI-ToAddModList; and / or A second DCI (for indicating (or indicating) a unified TCI) (e.g., DCI format 1_1 / 1_2, etc.).

[0258] (Appendix 12) 12. The method of any one of claims 6 to 11, further comprising: The second beam (including an uplink beam and / or a downlink beam) is determined (based on the first instruction information and / or predefined rules) (or the second beam is predefined (including being determined (based on the first instruction information and / or predefined rules))).

[0259] (Appendix 13) 13. The method of any one of claims 8 to 12, comprising: The second beam comprises: a (downlink) beam determined by the QCL assumption of the CORESET with the smallest ID and / or an (uplink) beam determined by the spatial relationship (within the CORESET configured for the first serving cell) of the PUCCH with the smallest (PUCCH resource) ID; and / or A downlink and / or uplink beam determined by a designated unified TCI.

[0260] (Appendix 14) 10. The method of any one of appendices 8 to 9, comprising: The second instruction information is used to instruct a backhaul link beam (e.g., MAC CE).

[0261] (Appendix 15) 15. The method of any one of appendixes 8 or 8a or 14, comprising: The second beam is directed by the second instruction information.

[0262] (Appendix 16) The method of any one of appendices 6 to 9, further comprising: determining the second beam (based on the second indication information).

[0263] (Appendix 17) 10. The method of any one of claims 6 to 9, comprising: The third instruction information is used to instruct an access link beam.

[0264] (Appendix 18) 10. The method of any one of claims 6 to 9, comprising: The third instruction information includes a periodic / semi-static (or provided by RRC signaling) access link beam instruction, an activation command (MAC CE / DCI) (for activating the access link beam instruction), information for setting / instructing the first DCI (monitored by the NCR / NCR-MT), and the first DCI (for instructing the access link beam).

[0265] (Appendix 19) 19. The method of any one of claims 1 to 18, further comprising: In the event of beam failure, the NCR-MT does not monitor (receive) the first DCI (format) and / or the second DCI, and the first DCI is used to direct the access link beam.

[0266] (Appendix 20) 20. The method of any one of claims 1 to 19, comprising: During the beam failure recovery process (or until or before BFR is successful), the NCR-MT does not monitor the first DCI (format).

[0267] (Appendix 21) 21. The method according to claim 19 or 20, After BFR is successful, the NCR-MT monitors the first DCI (format).

[0268] (Appendix 22) 21. The method according to claim 19 or 20, The NCR-MT does not monitor the first DCI (format) until (or before) it receives first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / instruction) and / or third instruction information (or access link beam setting / instruction) and / or applies the first instruction information and / or second instruction information and / or third instruction information (or applies the beam instructed by the above-mentioned instruction information).

[0269] (Appendix 23) 23. The method of claim 22, After receiving first instruction information (or control link beam instruction / setting) and / or second instruction information (or backhaul link beam setting / instruction) and / or third instruction information (or access link beam setting / instruction), and / or applying the first instruction information and / or second instruction information and / or third instruction information (or applying the beam instructed by the above-mentioned instruction information), the NCR-MT monitors the first DCI (format).

[0270] (Appendix 24) 19. The method of any one of claims 1 to 18, further comprising: When the beam fails, the NCR-MT monitors a first DCI (format), which is used to instruct the access link beam.

[0271] (Appendix 25) 20. The method of any one of claims 1 to 19, comprising: During the beam failure recovery process (or until BFR is successful, or before BFR is successful), the NCR-MT monitors the first DCI (format).

[0272] (Appendix 26) 26. The method of any one of claims 1 to 25, comprising: The NCR-MT monitors the first DCI before the beam failure and / or the beam failure recovery.

[0273] (Appendix 27) a transporter, a memory and a processor; The storage device stores a computer program, The processor is configured to execute the computer program to implement the transfer control method according to any one of Supplementary Notes 1 to 26.

[0274] <Group 3> (Appendix 1) 1. A method of forwarding control, applied to a forwarder, comprising: the forwarder performs beam failure (or link failure) detection (for the first cell); In case of beam failure (of the first cell), the mobile terminal (NCR-MT) of said forwarder performs beam failure recovery (BFR); In the event of the BFR failure (or if a random access problem exists), the forwarding unit (NCR-Fwd) of the forwarder does not forward.

[0275] (Appendix 2) 1. A method of forwarding control, applied to a forwarder, comprising: the transmitter receiving the third instruction; or The forwarder does not expect to receive the third instruction information before the forwarder has an (applicable) backhaul link beam, and / or the forwarder does not apply (or is not expected to apply) the third instruction information.

[0276] (Appendix 3) 10. The method of claim 2, Before the forwarder has a backhaul link beam (where applicable), it includes: before determining the backhaul link beam (based on the predefined rule and / or the first instruction information) (or receiving the first instruction information); and / or before applying the determined backhaul link beam (based on predefined rules and / or first instruction information); and / or Before the backhaul link beam is set / instructed (or the second instruction information is received); and / or Before applying the instructed backhaul link beam (or applying the second instruction information).

[0277] (Appendix 4) a transporter, a memory and a processor; The storage device stores a computer program, The processor is configured to execute the computer program to implement the transfer control method according to claim 1, 2 or 3.

[0278] (Appendix 5) An information transmission method, applied to a network device, comprising: The network device sends third instruction information; or The network equipment does not transmit the third indication information before the forwarder has a (applicable) backhaul link beam or before a second period before the forwarder has a (applicable) backhaul link beam.

[0279] (Appendix 6) 6. The method of claim 5, The second period includes the time required for the forwarder to apply the third instruction information.

[0280] (Appendix 7) 6. The method of claim 5, The third instruction information is used to instruct an access link beam.

[0281] (Appendix 8) 6. The method of claim 5, The third instruction information includes a periodic / semi-static (or provided by RRC signaling) access link beam instruction, an activation command (MAC CE / DCI) (for activating the access link beam instruction), information for setting / instructing the first DCI (monitored by the NCR / NCR-MT), and the first DCI (for instructing the access link beam).

[0282] (Appendix 9) A network device, a memory and a processor; The storage device stores a computer program, The processor is configured to execute the computer program to implement the information transmission method according to any one of appendices 5 to 8.

Claims

1. a transporter, a mobile terminal (NCR-MT) that performs beam failure detection; The forwarder further includes a forwarding unit (NCR-Fwd), which turns off / does not forward in the event of a beam failure.

2. 2. The transfer device of claim 1, The mobile terminal performs beam failure recovery (BFR).

3. 2. The transfer device of claim 1, Until BFR is successful, the NCR-Fwd will be turned off / will not forward.

4. 2. The transfer device of claim 1, After the BFR is successful, the transfer unit performs the transfer.

5. 2. The transfer device of claim 1, The forwarding unit performs forwarding after a first period after a first PDCCH.

6. 6. The transfer device of claim 5, A transmitter, wherein the first PDCCH is used to determine the success of beam failure recovery and / or the completion of a random access procedure.

7. 6. A transfer device according to claim 4 or 5, The transfer unit employs a first beam to perform the transfer, and the first beam is the same as the beam used in the random access attempt / process.

8. 6. A transfer device according to claim 4 or 5, A forwarder, wherein the forwarding unit employs a first beam to perform forwarding, and the first beam includes a downlink beam and / or an uplink beam.

9. 6. A transfer device according to claim 4 or 5, The transfer unit employs a first beam to perform transfer; The first beam has an index q ｎｅｗ and / or a beam determined based on the same antenna port QCL parameters and / or the same spatial filter as in the most recent PRACH transmission, and / or an SSB associated with a RACH occasion (RO) of the most recent PRACH transmission, and / or a downlink beam for receiving the first PDCCH and / or an uplink beam for transmitting the last PRACH.

10. 6. A transfer device according to claim 4 or 5, The forwarder, wherein the forwarding unit employs a first beam to perform the forwarding, and the first beam is predefined or directed.

11. 2. The transfer device of claim 1, A forwarder in which the NCR-Fwd is turned off / does not forward before the beam failure recovery is successful until it receives first instruction information and / or second instruction information and / or third instruction information and / or applies the first instruction information and / or second instruction information and / or third instruction information.

12. 2. The transfer device of claim 1, A forwarder, wherein the forwarding unit performs forwarding after receiving first instruction information and / or second instruction information and / or third instruction information and / or applying the first instruction information and / or second instruction information and / or third instruction information.

13. 2. The transfer device of claim 1, A forwarder, wherein after receiving first instruction information and / or second instruction information and / or third instruction information and / or applying the first instruction information and / or second instruction information and / or third instruction information, the forwarding unit employs a first beam or a third beam to perform forwarding.

14. 3. The transfer device of claim 2, The success of the beam failure recovery is The NCR-MT has detected a DCI CRC-scrambled by a C-RNTI or an MCS-C-RNTI or an RNTI for the NCR in the search space (SS) provided by the recoverySearchSpaceId, and / or has received a first PDCCH, and / or the random access procedure has been completed, and / or the beam failure recovery has been completed; or A transmitter including an NCR-MT detecting a DCI CRC-scrambled by a C-RNTI or an MCS-C-RNTI or an RNTI for the NCR in a search space provided by recoverySearchSpaceId, and / or receiving a first PDCCH, and / or contention resolution being successful, and / or random access procedure being completed, and / or beam failure recovery being completed.

15. 13. A transfer device according to claim 11 or 12, The first instruction information is used to instruct / set a control link beam, the transmitter.

16. 13. A transfer device according to claim 11 or 12, The first instruction information MAC CE activation command for TCI state or tci-StatesPDCCH-ToAddList(-r17 / r18) and / or tci-StatesPDCCH-ToReleaseList(-r17 / r18); and / or PUCCH resource(s) for PUCCH-SpatialRelationInfo (-r17 / r18) and / or activation command for PUCCH-SpatialRelationInfo (-r17 / r18); and / or tci-StatesToAddModList(-r17 / r18) and / or tci-StatesToReleaseList(-r17 / r18); and / or dl-OrJointTCI-StateList(-r17 / r18) and / or dl-OrJointTCI-StateToAddModList(-r17 / r18) and / or dl-OrJointTCI-StateToReleaseList(-r17 / r18); and / or ul-TCI-ToAddModList; and / or A transmitter including a second DCI.

17. 13. A transfer device according to claim 11 or 12, The second instruction information is used to instruct a backhaul link beam, the transmitter.

18. 13. A transfer device according to claim 11 or 12, The third instruction information is used to instruct the access link beam, the transmitter.

19. 13. A transfer device according to claim 11 or 12, A transmitter, wherein the third instruction information includes a periodic / semi-static access link beam instruction, an activation command, information for setting / instructing the first DCI, and the first DCI.

20. A communication system including the forwarder of claim 1.

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